My role, read or don't, as you wish:
[spoiler]
Though it hasn't come up yet, I'm a gish, advancing Wizard casting for my arcane half. That gives me some flexibility when it comes to choosing utility vs combat, and I'll be working in Knowledge Devotion and Arcane Strike to fuel my damage potential.
Overall, I'm a bit squishy at the early levels, but my character should be able to function as an effective battlefield controller or damage dealer depending on which spells he goes with. Of course, I'm also one of the lowest-ECL players (I like "growing into" my abilities since I don't have a ton of play experience), so expect me to be filling a buffing/utility role for awhile.
[/spoiler]
From outward appearances, Agnak looks to be our tank and primary front-line fighter, but I'm sure he can elaborate more thoroughly on that.