Michael Gordon (http://www.michael-gordon.com) is doing a weekend LF workshop next March at Joshua Tree. I'm signed up (been trying to find a date that worked for me for a few years)- he's an excellent photographer and teacher. It's listed at Julia Dean Photo Workshops (www.juliadean.com), which is L.A.-based. I think Michael also does 1-on1 workshops, and he's based in Long Beach.