Ask friends. If you don't have friends in the local tech community, find out what tech groups there are in your area and visit them. I don't know about New York, but in Seattle there are dozens focused on every aspect of technology you can imagine (Mac programming, Perl, PHP, security, blogging, computer networking, business networking, et cetera).

I moved to Seattle two years ago and knew virtually nobody. I met a lot of people through local groups like SaturdayHouse, Six Hour Startup, and nPost, got to know people, and even found a job through a friend of a friend.

It can be difficult and take time to find the kind of employment that pays and allows you the freedom to do what you love, but it is possible. I wish you much luck.

I may have something for you here in NYC. Shoot me an email.

Go to events and talk to as many people as you can there... http://www.meetup.com/ny-tech/ and other smaller tech meetups http://nextny.org/

Nate Westheimer (http://innonate.com/) is the new organizer of the NY tech meetup. He has started an experiment doing office hours to have short (15 minute) meetings with people. http://innonate.com/2008/12/15/office-hours/ Sign up and go talk to him, I can almost guarantee he knows a handful of people who are looking for part time programming help.

Depends what kind of programming you do, but the standard method is consulting. There are a lot of people and companies with projects they need implemented, and will pay by the hour for someone to build it.