I am coming to SF for the weekend to get a feel for the city. I am a 36 yr old, single woman who may be making the move from NYC to SF this winter and want to find a couple spots for solo dining on Fri and Saturday night. I am looking for something upscale but not too ritzy in the city of SF - I won't have a car. (in NYC speak, looking for a Gramercy Tavern not a Per Se). I will be on my own so I'd love to find some delicious meals where I can eat at the bar without reservations. What are some notable SF nightlights that I should consider? Cuisine and price not an issue. I've never been to SF so I am clueless when it comes to fashionable eats. Thanks!