Needing a last-minute reservation for a birthday dinner and being shut out of all the usual SF hot spots, three of us ate at Fork in San Anselmo. I'd been a fan of co-owner Charles Lowe since his Susie Kate's days, but this restaurant is much more ambitious. Maybe too ambitious for Marin, as we were able to get in (although all tables were occupied).
The signature tasting menu is $49/person and worth it. From the truffled egg custard, with smoked bacon, to the maine lobster bisque, to the seared scallop on potato puree, etc., everything was perfect. (Okay, the waitress was inept but pleasant.) The Sancerre was reasonably priced for a very special wine.
This was my second dinner at Fork, and I think it holds its own with the best in San Francisco, at more reasonable prices. The room is small but the tables have enough distance that you can talk comfortably.