There's a big area right outside Room 20
where Main Events is held, and last year this space was used to host the Bleach, Naruto, Final Fantasy, and even the cosplay.com members gathering:
I reccomend this area for any large gatherings, and it's indoors so you don't have to worry about melting in the heat outside..
"This is your job. You want a clear conscience, go start a charity. But if you want your own photography business, and your cosplayer boss says you gotta go out there and take a photo-shoot, go out there, take it, come back to work, and say "DO YOU NEED ME TO DO IT AGAIN?!!"