SO FAR

Bierhumpen_Kukki: Bierhumpen Kukki (1.x onwards)
smittenkitten: Smitten Kitten (1.x onwards)
Loony BoB = Loony Bob (1.x onwards)
Aulayna = Aulayna Frye (Beta, on Moogle server)
nirojan = Daemon Crescent (1.x onwards)
mini ninja = Mini Ninja (1.x onwards)
The Summoner of Leviathan = Eoson Dymion (1.x onwards, due to change his name) aka Bobby
Raistlin = Raine Argent (1.x onwards, due to change his name) aka Wes
Del Murder = Don't know what he's going to call himself yet, but he's the NA rep for Fat Chocobos.
ThePheonix = Phanoix Pandy (1.x onwards)
Mirage = Mirage Askai (edited in, 1.x onwards, he's world transferring to us)

I'll make an update to the Fat Chocobos thread tomorrow with better details. xD