HI folks

I am visiting L.A. and San Francisco this year and I would like to know if there are any nice stores for buying used gear or film for a good price besides freestylephoto.
I will buy online in advance to have some filmstock as I don't want to take so much film withme when I travel from Vienna to L.A.

any Ideas, stores to go to or any other photorelated info for L.A. or San Francisco

I do not search for anything specific as I shoot from 35mm till 4x5" any use all kinds of brands from little p+s made by pentax to my mamiya rz67 to a wonderfull sinar P2.
regarding the filmquestion: I will only bring 35m and a 6x6 rolleicord Vb

I appreciate your time to answer in advance