On Friday August 3rd, The Golden Bull in Oakland is well worth a visit, those Bay Area guys have some great stuff, especially the mid tempo group stuff, a guy I know called Cameron Thompson is a resident DJ there and he has some great stuff, think you'll do well to strike lucky if you are digging for stuff in the Califs, these guys are right on top of it, a lot of rare soul collectors, especially the Sweet and Group stuff, have a great trip, sounds fantastic
Kev