Theres a spot in shadowmoon valley at black temple (around about 68.3) check on http://www.wowhead.com/?maps)
their names are "Demon Hunter Suppilicant" (The Blood Elves)they duel each other till like 50%)
--->**watch out for the elite that patrols there (has bout 60khp)**<---
---------------------------------- these are straight from wowhead
Name Count Count %
Sunfury Signet 9092 33.8
Netherweave Cloth 4269 15.9 [Have gotten LOTS of cloth from this]
Arcane Tome 714 2.7
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what i do is
1.run around pull about 4 spamming couple of arcane explosions
(cant get agro from running around on a mount since they hit each other)
2.once there rounded up do a blast wave
3.Cast Frost nova
4.get back a bit cause they hit fast & hurt
5.cast flamestrike
6.cast another arcane explosion
7.cast dragon's breath (they will be dazed for 3secs)
8.they should either be at 15%hp or dead
9.loot if dead if not spam arcane explosion
10.should be dead by then now loot & WTFPWN