Will be happening on March 17th and 18th, 2007 at the Flower Shop 2159 West 21st Place, Chicago. Saturday will feature a Data bending workshop at 1:30-3:00 PM and then Sunday Alex Inglizian will lead a circuit bending session. While browsing his website I found schematics for the vactrol sequencer, very neat stuff sounds cool too.
Vactrol sequencer link and video.