Bodybuilding Gym on Upper East Side of Manhattan?

Hi,
I’m a longtime T-Nation member, but an infrequent poster. I searched the boards, but couldn’t find a good answer to my question.
Can anyone recommend a good, serious, bodybuilding gym on the Upper East side of NYC? Preferably something that is not outrageously expensive? I’m moving to Manhattan shortly (around 68th and York), and would like to take this opportunity to get more serious with my training.

Thanks for your help!

-Pat