I'm visiting San Francisco for the first time in early November and am looking for some great restaurants in the cheap - moderate range. I'm from NYC, so I'm interested in trying out things I may not be able to find on the East Coast. I love seafood, all ethnic foods, and any out of the way hole-in-the-walls. Let's say up to a radius of about 30 miles from SF? Any help at all would be very much appreciated! Thanks!