Where To Have a Wedding Brunch in NYC?

My friend recently got engaged (woohoo!) and now she's trying to figure out where to have her wedding in New York. I actually get e-mails quite a bit from people getting married in New York looking for venue suggestions and I rarely know what to tell them. So what say you, married New Yorkers? Where's a good place for a wedding brunch that can seat 75 to 100 people and can close for a private event? If you use this advice yourself, I expect to be invited.