Your first team, will definitely want a lot of heroics.

First to gear the team, so they can run more heroics and run them quicker.
Eventually for a lot of badges, for heirloom items for later teams.
And possibly for badges to buy pvp gear, if you want to participate in that portion of the game.

I'd recommend an enchanter toon on the team.
Purely for disenchants of anything where the DE mat value exceeds the vendor value for an item.