I'm hosting a mini-conference for 25 attendees who are all staying at the Hilton in Dupont Circle. I want to plan a dinner at a restaurant within walking distance of the hotel. It can be any kind of food, but I want to showcase something fun and special, since the attendees are all from out of town. The restaurant has to be able to accommodate 25 people (all at one table, if possible), and we have to be able eat and drink for under $75 per person. Any suggestions?