I definitely second Little Fish at 6th and Catharine. On Sunday's they do a 5 course tasting menu for $28/person. We just went two weeks ago and had a really fabulous night; it's very small and intimate. If you search for it on here you'll find a lot of reviews.
I would definitely suggest grabbing a bottle of wine and dining at one of our great BYOs...Mercato, Lolita, Bindi, Marigold Kitchen, Modo Mio or Matyson are all great. Or one of our great bars like Good Dog - best burger in the city!