Hi! I've never been to S.F. and am attending a class in the Phelan building near Union Square. I am a student on a budget and will be without a car but I want to eat "well." Can this be done? I am open to any advice and would like to spend no more than $25-35/night at most, plus maybe one night a big splurge at somewhere hot. P.S. I fear tourists traps, chain restaurants, and looove California chard/viognier. Thanks!