What to do as 70

Alright so i thought i'd help you all out 70s and none 70s. Alrighty then so here you go:

Level 70 first thing you must do is grab your flying mount. But normally not alot of people do that. First thing to do as 70 is to do is decide what your going to do PvP or PvE

PvE is what you've been doing all from 1-70, but without the leveling up. As PvE you need to begin by starting gathering up some 70 gear. By doing this start by going into Heroic Dungeons. These are the level 60-70 instances. These also need have heroic keys buyable from Supply Offericers. Alright so once you get your gear, you want to start looking for raids, cause the gear you got from heroics isn't good enough. Going to Magtheridon he drops chestguard of the fallen hero which is used to get Tier 4 Chest. But once you get going you should have FULL epic gear.
Paladins, Ret won't get you a group so re-spec to protection or holy. Mages stick as Frost or if your guild needs you to go Arcane/Fire. Warlock Destruction is the raider's spec, Hunter Marksmanship and i don't know/remember any others.

PvP is a whole new thing for you, this is like running into Orgrimmir. But mostly you'll be in Battlegrounds, Defending Citys, Attacking Citys, Dueling Others or basicly just kicking the Hordes ass.
Once your level 70 hit the battlegrounds and arenas. Your going to need so much Honour Points you'll think your dead. But don't worry, you can get about 1000 points in a few Alterac Valley Matches.
Once you get the honour head straight the Stormwind Old Town area. After this is done and you have full PvP epic gear. After this is done your ready for whatever you want.

Enjoy the guide

~Narlock