So, the time is at hand. We finally have ten classes, all raids are being tuned to 10 or 25 man size, and I'm finally out of school and about to go get a real income. Looks like its time to expand my 5 man group to 10 man. Thus far, I'm imagining my set up is going to look like this:

Melee group:
Warrior
Rogue
Death Knight
Resto Shaman
Hunter

Caster Group:
Holy Priest
Mage
Resto Druid
Prot Pally
Lock

Leaves me with 3.5 healer, 2+ potential tanks depending on respective specs, and 4-5 DPS.