We will be back in SF after living in Boston for 12 years. We want to go out for a special evening. Many of the new upscale restaurants seem to focus on heavier food (meat, marrow, root vegetables). We'd like something more seafood oriented. We used to love Aqua. I see Farallon is still around but would like to try something new. Other favorites were Boulevard, Slanted Door, Plouf. Suggestions for new places would be helpful.