Used Record Shows in San Francisco Bay Area...

how funny, I was asking myself the same thing, I used to go to the KUSF (college radio station) Rock and Swap. I went to their website and saw the last one was in late 2003 and there was nothing planned.

their is another radio station which may have them over in Los Gatos called KFJC, you may want to check them out.

there is a store called Vinyl Solution in San Mateo and I believe the owner puts together record shows, you can call the store and ask if anything is going on.

good luck, let me know, id like to go as well.

Rasputin also has a store in Fremont, at 880 and Mowry, in case you're in the south bay. There's loads of used LPs for 50cents each, but be prepared to spend some time as the majority are thrashed. They also have used CDs.
I've had about 30-40 LPs off them for less than $20, and this has allowed me to sample several new (old) bands and composers. I've also found a few classical boxed sets in perfect condition for $2-3 each.

Check out The Record Man in Redwood City on El Camino Real. Great Selection.

Forgot to mention, the Anolog room in San Jose. Someone had mention another store in the San Jose area but can't remember the name, anybody know?

The Analog Room is all new vinyl, I beleive.