This looks like one of the best summer shows I've heard about, at The Drawing Center:

Playpen: Selections Summer 2004 June 17 – July 24, 2004 Opening Reception: Wednesday, June 16, 6:00–8:00 pm "Playpen" is a process-based exhibition that encourages experimentation with the boundaries of space, drawing, and the role of the institution. Each of the artists represented has created a project specifically for the exhibition. Often depending on direct interaction with the audience for their ultimate meaning, the works in "Playpen" cross the restricted line between the sanctity of objects and the temporality of performative events.

The artists featured in "Playpen" are: David Brody (Brooklyn, NY), Voebe de Gruyter (Brussels, Belgium), Charles Goldman (Brooklyn, NY), Alina Viola Grumiller (New York, NY), Valerie Hegarty (Brooklyn, NY), Geoff Lupo (Brooklyn, NY), Edward Monovich (Summit, NJ), neuroTransmitter (New York, NY), Red76 (Portland, OR and Chicago, IL), Gedi Sibony (Brooklyn, NY), Austin Thomas (Brooklyn, NY), and Alex Villar (New York City).

I did Charles Goldman's web site, and I'm a huge fan. We heard about the show when we were visitng Valerie Hegarty's studio at Smack Mellon a couple of nights ago.

Speaking of summer shows, "Sommer Show" at Lehmann Maupin is really incredible. If I could afford it, I would have bought one of Eliezer Sonnenschein's fantastic paintings -- see Sommer Contempory Art's site for images.