If you're looking for a very good and inexpensive (by non-Chinatown standards) Chinese on the UWS, try Yin Cheng on Amsterdam between 67th and 68th. We think it's the best of its kind (meaning besides Shun Lee)in the neighborhood. Seafood in particular is always fresh and good, but we've liked everything we've tried there. They also make good Peking duck.
I may have posted about this before--can't remember--but when I did a search on this board I can't find it, so I thought I'd share it again.