I'll be visiting San Francisco from NYC with a group of colleagues (teachers) in February. We are staying in Nob Hill at the Renaissance Marriott. Being the foodie in the group, I am in charge of dinner reservations. I am looking for a few recommendations for places that can accommodate a group of 10-12 for dinner and will deliver a great meal at a reasonable price (the cost of the meal will be covered by our school). It can be someplace within walking distance or we can cab it too.