The Dallas Comic Con
All the info is on that page. Ernie Hudson will be there, as well as Peter Mayhem (CHewbacca), Morena Baccarin of Firefly/Serenity fame, and Walter Koenig of Star Trek fame.
I'll be there in costume on Saturday, and I know a few other guys from Proptopia plan to be there, too.
Come join the fun!