New York City wine stores

[noitall]

I'm planning to go to New York city in a few weeks. My main purpose for going there is to buy some wine that I can't get at home. However, since there are so many wine stores there and since I haven't frequented any, I need some help. I looking to buy some Ports, some Monbazillacs, some Cabernets and some Grappas, along with some others. Can anyone give me some suggestions, as to what wine stores I could try. Thanks for the help. It's greatly appreciated. Noitall