For all the people Asking questions about the Extended Costs here ya go as i havent seen a complete guide on it with the Ids explained
its a list of all the extended costs working this way
ID# Name Number of Items Required
For those who are wondering you simply take the FIRST number and place it into your Extended costs Field in the Vendors Table

For example
So say you want to make an item cost an amount like say a Helm of the Forgotten Conquerer..
You go to your Vendor Table Find the Vendor ID for the person who sells the item you want to change the price for.
Finding this you move right to find the ITEM number you want to change the price for
Then Sixth column is Extended_cost
Looking in the List provided here you find 1488 Helm of the Forgotten Conqueror
in the Extended_cost field for that item type 1488
Close Navicat( or whatever DB program your using) and restart Server after deleting cache.. That item will now cost a Helm of the forgotten Conqueror
Now heres the list. Any Questions or found errors please feel free to Post here
Code:
2425 Alterac valley mark of honor 10
2424 Alterac Valley Mark of Honor 5
2412-2407 unknown 
2406 Eye of the Storm Mark of Honor 40
2405 Eye of the Storm mark of Honor 20
2402 Alterac Valley Mark of Honor 10
2401 Warsong Gulch Mark of Honor 20
2400 Eye of the Storm Mark of Honor 40
2399 unknown
2398 unknown
2397 unknown
2393-2354 unknown appears unused
2353 Burning Blossom 350
2352 Burning Blossom 200
2351 Burning Blossom 100
2350 Burning Blossom 20
2349 Burning Blossom 5
2348 Burning Blossom 2
2347 Badge of Justicex40
2346-2334 unknown appears unused
2333 Badge of Justicex100
2332 Badge of Justicex45
2331 Badge of Justicex105
2330 Badge of Justicex125
2329 Badge of Justicex150
2328 unknown
2327 unknown
2326-2292 unknown
2291 Arathi Basin Mark of Honor 20
2290 Arathi Basin Mark of Honor 20
2289 Alterac Valley Mark of Honor 40
2288-2282 unknown appears unused 
2281 Warsong Gulch Mark of Honor 30
2280 Alterac Valley Mark of Honor 30
2279 Arathi Basin Mark of Honor 30
2278 Arathi Basin Mark of Honor 20
2277 Alterac Valley Mark of Honor 20
2276-2273 unknown
2272 Apexis Shard 50
2271 Alterac Valley Mark of Honor 40
2270 Alterac Valley Mark of Honor 40
2269 Arathi Basin Mark of Honor 20
2268 Arathi Basin Mark of Honor 20
2267 Arathi Basin Mark of Honor 20
2266 Arathi Basin Mark of Honor 20
2265 Warsong Gulch Mark of Honor 30
2264 Warsong Gulch Mark of Honor 30
2263 Alterac Valley Mark of Honor 30
2262 Alterac Valley Mark of Honor 30
2261 Alterac Valley Mark of Honor 20
2260 Alterac Valley Mark of Honor 20
2259 Arathi Basin Mark of Honor 30
2258 Arathi Basin Mark of Honor 30
2257 Alterac Valley Mark of Honor 40
2256 Alterac Valley Mark of Honor 40
2255 Eye of the Storm Mark of Honor 20
2254 Eye of the Storm Mark of Honor 20
2253 Alterac Valley Mark of Honor 10
2252 Eye of the Storm Mark of Honor 10
2251 Warsong Gulch Mark of Honor 20
2250 Eye of the Storm Mark of Honor 40
2249 Arathi Basin Mark of Honor 40
2248 Eye of the Storm Mark of Honor 10
2242 Eye of the Storm Mark of Honor 20
2241 Eye of the Storm Mark of Honor 10
2240 Eye of the Storm Mark of Honor 20
2239 Eye of the Storm Mark of Honor 20
2238 Eye of the Storm Mark of Honor 20
2237 Alterac Valley Mark of Honor 40
2236 Halaa Research Token 4
2060 Badge of Justice 35
2059 Badge of Justice 60
2049 Badge of Justice 75
2028 Alterac Valley Mark of Honor 10
1994 Glowcap 10
1992 Spirit Shard 2
1985 Apexis Crystal 3
1981 Apexis Crystal 4
1979 Apexis Shard 160
1973 Apexis Shard 40
1963 Coilfang Armaments 1
1959 Mark of the Illidari 1
1958 Apexis Shard 10
1952 Apexis Crystal 1
1950 Apexis Crystal 4
1949 Apexis Shard 2
1948 Apexis Shard 3
1935 Warsong Gulch Mark of Honor 20
1923 Arathi Basin Mark of Honor 40
1911 Eye of the Storm Mark of Honor 40
1910 Apexis Shard 35
1909 Badge of Justice 10
1765 Halaa Research Token 2
1758-1664 unknown 
1653 Warsong Gulch Mark of Honor 2
1652 Eye of the Storm Mark of Honor 2
1649 Alterac Valley Mark of Honor 2
1648 Arathi Basin Mark of Honor 2
1647 Halaa Battle Token 70
1646 Halaa Battle Token 100
1645 unknown
1642 Badge of Justice 15
1565 unknown
1564 unknown
1524 Pauldrons of the Forgotten Vanquisher
1523 Leggings of the Forgotten Vanquisher
1522 Chestguard of the Forgotten Vanquisher
1521 Helm of the Forgotten Vanquisher
1520 Gloves of the Forgotten Vanquisher
1497 Pauldrons of the Forgotten Conqueror
1494 Leggings of the Forgotten Conqueror
1491 Chestguard of the Forgotten Conqueror
1488 Helm of the Forgotten Conqueror
1485 Gloves of the Forgotten Conqueror
1482 Pauldrons of the Forgotten Protector
1480 Leggings of the forgotten Protector
1478 Chestguard of the forgotten Protector
1476 Helm of the Forgotten Protector
1474 Gloves of the Forgotten Protector
1468 Murloc Fin 60
1454 Badge of Justice 30
1452 Badge of Justice 20
1442 Warsong Gulch Mark of Honor 60
1435-1432 unknown
1361 Pauldrons of the Vanquished Hero
1360 Leggings of the Vanquished Hero
1359 Chestguard of the Vanquished Hero
1358 Helm of the Vanquished Hero
1357 Gloves of the Vanquished hero
1346 Pauldrons of the Vanquished Champion
1345 Leggings of the Vanquished Champion
1344 Chestguard of the Vanquished Champion
1343 Helm of the Vanquished CHampion
1342 Gloves of the Vanquished Champion
1336 Pauldrons of the Vanquished Defender
1335 Leggings of the Vaquished Defender
1334 Chestguard of the Vanquished Defender
1333 Helm of the Vanquished Defender
1332 Gloves of the Vanquished Defender
1243 Pauldrons of the Fallen Defender
1241 Leggings of the Fallen Defender
1239 Chestguard of the Fallen Defender
1237 Helm of the Fallen Defender
1235 Gloves of the Fallen Defender
1219 Pauldrons of the Fallen Hero
1218 Leggings of the Fallen Hero
1217 Chestguard of the Fallen Hero
1216 Helm of the Fallen Hero
1215 Gloves of the Fallen Hero
1212 Pauldrons of the Fallen Champion
1209 Leggings of the Fallen Champion
1206 CHestguard of the Fallen Champion
1203 Helm of the Fallen Champion 
1200 Gloves of the Fallen Champion 
1196 Arcane Rune 8
1192 Arcane Rune 2
1188 Holy Dust 8
1184 Holy Dust 2
1111 Warsong Gulch Mark of Honor 30
1110 Arathi Basin Mark of Honor 30
1077 Glowcap 45
1076 Glowcap 20
1062 Alterac Valley Mark of Honor 20
1061 Arathi Basin Mark of Honor 20
1055 Warsong Gulch Mark of Honor 30
1054 Warsong Gulch Mark of Honor 30
1050 Arathi Basin Mark of Honor 10
1040 Badge of Justice 50
1037 Badge of Justice 33
1027 Badge of Justice 41
1015 Badge of Justice 25
1009 Warsong Gulch Mark of Honor 60
1007 Arathi Basin Mark of Honor 3
1006 Alterac Valley Mark of Honor 20
1005 Alterac Valley Mark of Honor 50
1003 Alterac Valley Mark of Honor 60
1002 Alterac Valley Mark of Honor 30
1000 Arathi Basin Mark of Honor 60
990 Warsong Gulch Mark of Honor 20
989 Warsong Gulch Mark of Honor 20
986 Arathi Basin Mark of Honor 10
968 Warsong Gulch Mark of Honor 30
947 Arathi Basin Mark of Honor 30
933 Arathi Basin Mark of Honor 20
931 Warsong Gulch Mark of Honor 10
930 Warsong Gulch Mark of Honor 20
929 Warsong Gulch Mark of Honor 40
917 Warsong Gulch Mark of Honor 30
901 Arathi Basin Mark of Honor 30
887 Arathi Basin Mark of Honor 20
885 Warsong Gulch Mark of Honor 10
884 Warsong Gulch Mark of Honor 20
883 Warsong Gulch Mark of Honor 40
871 Warsong Gulch Mark of Honor 30
855 Arathi Basin Mark of Honor 30
841 Arathi Basin Mark of Honor 20
839 Warsong Gulch Mark of Honor 10
838 Warsong Gulch Mark of Honor 20
837 Warsong Gulch Mark of Honor 40
826 Warsong Gulch Mark of Honor 30
823 Warsong Gulch Mark of Honor 10
822 Warsong Gulch Mark of Honor 20
821 Warsong Gulch Mark of Honor 40
774 Arathi Basin Mark of Honor 10
748 Warsong Gulch Mark of Honor 40
747 Warsong Gulch Mark of Honor 30
746 Arathi Basin Mark of Honor 40
702 Alterac Valley Mark of Honor 25
701 Warsong Gultch Mark of Honor 30
653 Warsong Gultch Mark of Honor 30
652 Arathi Basin Mark of Honor 30
634 unknown 
567 Arathi Basin Mark of Honor 40
565 Arathi Basin Mark of Honor 20
542 Warsong Gultch Mark of Honor 30
541 Alterac Valley Mark of Honor 20
533 Alterac Valley Mark of Honor 20
532 Atlerac Valley Mark of Honor 10
520 Arathi Basin mark of Honor 30
501 Arathi Basin Mark of Honor 40
497 Alterac Valley Mark of Honor 15
496 Alterac Valley Mark of Honor 10
495 Arathi Basin Mark of Honor 20
492 Warsong Gultch Mark of Honor 10
491 Warsong Gultch Mark of Honor 20
490 Warsong Gultch Mark of Honor 40
489 Alterac Valley Mark of Honor 25
488 Warsong Gultch Mark of Honor 20
465 Arathi Basin Mark of Honor 20
464 Alterac Valley Mark of Honor 30
463 Arathi Basin Mark of Honor 30
460 unknown 
444 Alterac Valley Mark of Honor 30
428 Alterac Valley Mark of Honor 20
427 Arathi Basin mark of Honor 20
423 Alterac Valley Mark of Honor 30
388 Glowcap 30
386 unknown
360 ALterac Valley Mark of Honor 40
359 Unknown 
348 Eye of the Storm Mark of Honor 20
298 Spirit Shard 8
293 SPirit Shard 50
205 Arathi Basin Mark of Honor 20
204 Warsong Gultch Mark of Honor 30
203 Alterac Valley Mark of Honor 30
202 Alterac Valley Mark of Honor 20
201 Arathi Basin Mark of Honor 30
194 Spirit Shard 18
173 unused
172 Arathi Basin Mark of Honor 40
171 Eye of the Storm Mark of Honor 40
170 unknown
169 Warsong Gultch Mark of Honor 20
165 Arathi Basin Mark of Honor 20
148 unknown
146 unknown
133 unknown
131 Alterac Valley Mark of honor 40
129 Alterac Valley Mark of honor 10
127 Eye of the Storm Mark of Honor 10
125 Eye of the Storm Mark of Honor 10
115 unknown 
104 Glowcap 15
103 Glowcap 25
102 Glowcap 2
100 Glowcap 1
99 unknown
98 unknown
95 unknown
94 unknown
77 Mark of Honor Hold 30
76 Mark of Thrallmar 30
69 Mark of Honor Hold 15
66 unknown
65 Mark of Thrallmar 15
56 Mark of Honor Hold 10
55 Mark of Thrallmar 10
54 Mark of Thrallmar 5
53 Mark of Honor hold 5
26 unknown
24 unknown
22 unknown
21 unknown
18 Halaa Battle Token 100
7 Halaa Research Token 8
6 Halaa Battle Token 20
5 Halaa Battle Token 40
2 Unknown
1 Tough Jerky 1





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