What part of NYC? Dunno so much of stuff can be found all over no.. But check out soho - (broadway prince etc) Nolita (north of little italy) Also some good stores in Chelsea, west village.. Perhaps best to shop is Century 21.. Cant try anything on in store so go early in your trip and early in the morning.. You would be amazed by what you can pick up there http://www.c21stores.com/
I try to - since leaving NYC Im much happier to be out no so late and save a ton of money.. Plus the bars there are great Black Bear and Whiskey Bar are great.. Where is Liberty? I tend to stay more near where the NYSC is