Thanks for the info guys.

Few questions:
If I run 4 shamen. Will 4 healing totems be enough for trash in dungs/HCs or will a healer still be needed ful time?
For that matter will 1 or 2 be effective at all.

If the totems arent that great I might go for something like a:
1) Tankadin
2) Disc Priest (shields up)
3) Shammy, Mage and boomkin for DPS.
All 3 DPSs can be macroed so DPS rotations shouldnt be an issue. (SHould the boomkin be in there or should I make it a hunter)?

In this setup:
- tank tanks
- priest heals with shammy offhealing for big incoming damage.
- for low healing needs the 4 of them can all DPS.

My only worry is that 5 different classes might be too much for my virgin full leveling run, in which case back to the 1 pally and 4 shammies or 1pally, priest and shammies.