L&P/Total Photo are good when you need to buy stuff locally, their student discount has been good to me. I've gotten a few good things from their back room too, but sometimes admittedly just because they didn't know what it was. A lot of it is on consignment, so they cant really be blamed for the prices the owners of the stuff set. I picked up a JOBO CPE2 kit with a pile of stuff for $80 once though, so you can get lucky.
And, I'm sorry I missed the dang thing again. I found this thread the day after - August 1st is written in on my calendar now and I'll be there. Any theme for the show and tell? It's always nice to talk to people who know what the things I keep spending all my money on are.