Before I die, there are three things I'd like to try: Escargot, Caviar, and Truffles. I'll be in SF in several months. Can anyone suggest a place that serves "good escargot". (Whatever that would be.) Hopefully near Union square which is where I'll be staying and not too pricey. I'm on a budget and traveling alone. Bistro Central Park sounds good pricewise, but is not close to my Hotel. The caviar and truffles can wait for some other time. Thanks.