UPTOWN RESTAURANT SUGGESTIONS?

my boss is taking clients out near madison avenue (ralph lauren's office) and everywhere i'm calling for reservations is booked...

does anyone have any suggestions for a good, nice restaurant, price doesn't matter in that area (uptownish)??? THANKS SO MUCH!! i've only been to tavern on the green lol

A few that I know are up that way:

Fredericks Madison
Daniel
Aureole
Lenox Room
Cafe Boulud

Good luck!