Any city with a Chinatown has Dim Sum restaurants. I live by NYC and HSF is a really fun place for this Hong Kong style meal. When I went to San Francisco, the first meal I had was at Yank Sing and it was wonderful. The place is clean. The food is presented well and the variety of dishes was excellent. I brought some east coast business folks (I am the resident foodie) none of whom had ever had Dim Sum. They were very pleasantly surprised by the experience.
I am sure that a real Bay Area local would be able to tell me about another great place (I found this one by reading some SF food books) but I would go back to this in a minute. As for the prices - they are similar or better than NYC.
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