When you are looking for specific plants you need to spread a wide net. I've gotten some nice ones at Norman's. Sometimes I feel his are overpriced, but he has a huge selection of unusual cattleyas. I like the unusual epi-cat type hybrids and Mermecophila hybrids. They all ship to San Francisco if they use USPS or any of the other shipping services.
Also Jim Marlow (Marlow's Orchids) has a fair selection of more compact type Cattleyas if that's what you're looking for. A few years ago, I started getting into the miniature and compact varieties, and I really love them. I have bought several such plants from Marlow, and they have all been very nice, and his customer service is nothing short of excellent. I definitely recommend that you give him a shot if he's got something you like.