[Gritz]

Just to echo what's already been posted - AJ is the best Arena PvP site for all classes (need a minimum 2000 rating to post - sounds elitist, but actually works really well at keeping out the riff-raff - myself included). They have macro sections for each class, as well as an in-depth team comp based strategies (eg, I'm a lock partnered with a Shaman; I can look up what has been posted strat-wise for lock/shaman vs nearly any other 2s comp). Sure, it won't have a strat for destro lock+ BM hunter, it only focuses on comps that have a remote chance of getting to 2k.

Pyrilius has made quite a few videos - always entertaining to watch, as is heideheineken (sp?).

Good Luck!