I'm running a bear tank, 3 frost mages and a resto shaman (running them boomking, 3x frost (2 arcane sub 1 fire sub) and elemental shaman when they hit 80 for raiding.

Tanking is DEFINITELY a challenge its all about setting the initial pull up right, i've found i want druid to the side and in front of the groups so that if they start to run away they're still in front.