I want to take a friend out for his birthday. We both love really good food and good service, but he will not dress up for dinner, especially in the summer. So we need a place that does not require a jacket, and in fact won't look at us strangely if he's wearing shorts and a polo shirt. I'm totally unfamiliar with the best places to go in Raleigh--almost never eat there; we've been to most of the best restaurants in Chapel Hill and Durham (favorites in Chapel Hill are Elaine's and Aurora). Suggestions welcomed.