going to Fan Expo!
I've also never been, but I'm going with my friend who has gone multiple times. She likes anime and crap, but friggin' famous people are going to be there. Have you seen the guest list? Adam West, Bill Shatner, Summer Glau, Felicia Day(The Guild), James Marsters(Spike on Buffy), Michael Dorn(Worf on Star Trek), Sendhil Ramathuray(Mohinder on Heroes), Peter Mayhew(Che-freaking-bacca), and that's just some of the Sci-Fi guests.
EDIT: You should check outtheir website