That group had bards (Danny, Ryan), proper rogues (Linus, Yen), a fighter type (Virgil), and even a wizard (Basher). Leverage is another good example of how a group of thieves can have diverse skill sets and backgrounds and all operate as a cohesive conman unit.
With all that blabbering aside, I've started this thread so us player types can figure out how our prospective characters can best work together, and to make sure we don't miss out on any vital roles.
Edit: If anything here contradicts your vision for the game, oh illustrious game master, please correct me. :-)
Illuminaire - Alchemist
BjmGeek - Pirate! Arrrr!
Hanabi - Rogue
Jeeeeoker - Rogue
QikJoi - Bard (Sandman)
Ohmsford - Sniper Rogue or Sorceress
Daemonar - Alchemist