In a few weeks, I am taking my class, kids who go to college in rural New England, to New York for a weekend field trip. We're staying in Murray Hill, not one of the neighborhoods I know well. I would love to take them to dinner at a place with interesting food (especially Korean, Thai, Vietnamese or Mexican--but I'm open to other ideas). The catch: I need a place that takes reservations, that can take a group of 17, and that will let us get out for not more than $20 per person. Within those limits, quality and interestingness of food (not decor, or even service) is all that matters to me. Any suggestions would be much appriciated.