dpan-I've always liked
Shanghai 1930 on Steuart for Chinese
Yank Sing's for Dim Sum in the Rincon Center on Spear St.
Boulevard at 1 Mission St serves great American with French influences.
LuLu on Folsom for the iron skillet mussels
Fluer de Lys for a great French romantic dinner
Matterhorn on Geary for awesome Swiss Fondue
All of these have websites:
It's been about 3 1/2 years since I've been back so there may be a couple of great new ones that someone can recommend