I've been playing around with a variety of low-level classes and comps, just getting comfortable with multiboxing, and I'm thinking that when 8.1 hits with the xp changes, I should commit to a comp and take it all the way to cap. The reason I'm planning 3-man is to solo island expeditions and, for a challenge, eventually see how I can do in dungeons. If I get stuck, finding a pair of extra DPS is easy enough, and I can still set the pace of the run myself.

As a 3-man, I'll need to squeeze as much DPS in as I can, so I'm thinking of something along the lines of:

Prot Pally
Disc Priest
Mage (spec for encounter)

Another, less cookie-cutter option I'm considering is:

Brewmaster Monk
Resto Shaman
Warlock

Both of those comps cover the basics (interrupts, CC, lust) pretty well, but I think the second is probably more versatile and has two combat rezzes, but will do lower DPS? What do you all think would make a good 3-man dream team?