A friend's son is turning 21. We're going out to celebrate for dinner with him, his girlfriend, his sister, her boyfriend, and his father and his girlfriend. He originally picked Koi as the restaurant of choice; however, we would like to find a place that is equally hip and suited to his needs, but want somewhere less expensive. We're going tomorrow night-- Friday. He'll go out with his friends afterwards, so there's little concern over making this "the night of his life" at the restaurant. Any suggestions for a fun, less expensive 21st birthday along the same lines as Koi?