are you 100% sure though you are going to stick with the shammys in WOTLK? I flip flop a lot between rolling 5 new DKs or sticking with shamans. Eventually I want both, but what do I focus on first...

I just don't see there being enough time in the day to focus on more than one team for at least 6 months, after all every moment in game will have something to do.