I've gone to:
Anime Mid-Atlantic
Katsucon
Otakon'10 (dressed as Kairi)
Otakon'11 (dressed as Xion)
I have lots of fun at them, it's always interesting to see all the the time and work people put into their costumes and see all the cool stuff there is to buy. I am planning on going to Comic-con next year, I don't know who to go as yet, but I want to start planning xP Looks like you had a good time, almost makes me regret not going to Otakon this year, alllmooosssstttt. xD