I'd like to see some workshops from the APUG regulars like Sandy and Les, and maybe a session with Tracy Storer and the big Polaroid (hmmm.... corporate sponsorship opportunity there?). How about Kerry Thalmann on, say, choosing a lens, or lens design and aesthetics, or backpacking with a big camera?
There are the usual suspects, of course, like John Sexton, Bruce Barnbaum, Michael & Paula, Tillman Crane, etc. Andrea Modica teaches and does workshops and could be interesting. John Coffer maybe for a collodion demo?
There should be something for the small format types. How about Mike Johnston or Bill Pierce who writes a good column on digitaljournalist.org (but seems very well disposed toward film)?
I'd be more interested in a group show than a competition.