Cloths, not happening. I can't comment too much on 5 shamans, cause there are some possibilities there, just a hell of a lot more risk vs a standard tank/dps/heal group.

I have 2 groups that I use for heroics. Total of 10 level 70's.

-Paladin, mage, mage, mage, druid. (Still farming bojs)
-Warior, mage, warlock, mage, priest. (I farmed all the bojs I would ever need for this group.)