My friends and I joined a very good CSA (community supported agriculture) group this year. Like most CSA groups, this CSA provided a fixed type and amount of vegetables each week. There are no fruits (this farmer doesn't grow them) but there are eggs. For more information on joining next year, here is the contact information:
Tierra Direct CSA
Fresh food from the farm to the Heights
390 Fort Washington Ave
New York, New York 10033
If a traditional CSA is not your style, particularly if you want to pick out what you need each week rather than having it determined for you, then I recommend the Holton Farms truck that stops on Cabrini Boulevard and 190th Street each Thursday morning. Visit http://www.holtonfarms.com/ for more information.