For those in and around Orlando, MegaCon starts today. Both GFLug and OLug are displaying; there's a decent train set up, moon-base, and of course castle. Use castle-builders are definitely in the minority so it's a bit smaller.
I have no idea what the policies are for getting tickets and whatnot, but if you're in the area, come and see us. We're at the big sign that says "LEGO Pit."
Have a great weekend!