Supporting Knight Games on 10/25 sounds like an excellent idea, if PC can get us space. I couldn't find out much info about on a quick Google search, but it looks like there's an entrance fee of $25 for entering for the day - but that money goes to charity, as I understand it.
I'd be willing to run a D&D 3.5e adventure for the day, too. Maybe even a game of Baron Munchausen, if my boxes are unpacked from moving at that point. I've had that game for years, and have never had a chance to play it.