My two sons have just turned 6 and 9 and we're throwing a family celebration for them next weekend. They have just been turned on to dim sum, but rather "junior varsity" dim sum (things like pork and shrimp dumplings at Shun Lee Cafe). They have asked for a dim sum birthday lunch. All told, we're 15 people - some more adventurous, some not. I'm looking for a venue that a) could seat such a big group, b) would take a reservation and c) would please all members of the group. I have cross posted this to the manhattan board, as we're willing to consider anywhere in NYC.