I'm an MDTS alumni. I recommend them.
Also, check out then tactical pistol club mentioned few threads down. This will get you shooting in some tactical scenarios, instead of just target shooting. It's not too far from the bronx either. But I recommend some training/practice first, before coming to the club. It would be overwhelming and unsafe in my opinion to be doing practical shooting scenarios out of the bat. But if you been shooting a while then it'll be a hoot.
K