I'll wait until closer to the date before figuring out anything specific. Even if there aren't any more attendees, I'll keep you posted.
Scott, I know they have tabletop games, but I thought it was mostly D&D, Catan, Magic, etc. type tournaments. They had a bunch of games to check out at the last PAX I went to (Seattle 08), and of course they'd let you bring your own and play in the "open play" areas. I think it could be difficult finding enough people for the more complicated, long games, but probably easier than in a less gaming oriented crowd? Sorry I don't have a more specific answer, but I'm not too familiar with Avalon Hill games myself.