I am a pvp junkie!!! (1750 in 5's on my pod of 4 shammies) but i would care less if i was on a pvp or pve server. u sign up for Bgs and play them and get ur gear, ull get a que really fast no madder what server ur on because they are cross relms meaning they are linked with like 20 dif. other relms so yeah.. ull get the que.

Then once u get ur gear, u find a healer which is easy to find even on a pve server, do arenas own and u feel happy
if u ever wanna heroic, bambbbb 10000 tanks on a pve server.. boom ur set, (u also got ur pali lol)

when you do arena most people do not run 5 in pvp anways. they have there 4 alll dps, and someone else heals, so i mean ur 4 other guys are set i think, I wouldnt want u to have to level up again, and i mean once ur 80 and if u want to world pvp (there really is no world pvp in wow to be honest, all it is is u might see a horde/alliance questing and u gank them, there is never like a huge battle or anything.. u pay 80 bucks to transfer all ur 4 guys to a pvp server, done.