GC is GenCon (specifically, the one in Indy; see my Events page for more info). It's a three-day sci-fi/animu/fantasy con.
Sadly, MFF is pretty much out of the question this year for me (seeing how my parents are kind of fur-phobic and all [well, more ignorant than phobic, but still]), but I hope to be able to go next year after I hit sweet eighteen. x3
I haven't been into anime that much myself recently, but I still always have a blast at ACEN (admittedly, more for the goth, furry, and rhythm gaming aspects than the anime aspect).
I don't really go out to cons that much, though. Just ACEN and GC. lol Still, it might be cool to see you at one sometime (that is, if you even go to either one). *Giggles and nodnods, tails swaying gently*