Capellan's page

It would be really helpful for a Brisbane gamer with local knowledge to be involved in this side of things, if anyone is out there? Particuarly someone with contacts, venue booking experience, or just ideas for a place we out-of-towners might not be aware of.

I suggest you talk to the guys at "The Stockade", as well as Steve Darlington as they are both looking to set something up in Gencon Oz's place.

Maybe a base DC + the higher of (the opponent's BAB or ranks in Acrobatics)?

That's probably a basic DC structure that can be applied to a lot of different skills and their uses.