This is a blast from the past, and something I didn’t know was online: a video of the Personal Space section from the Quartet Project, directed by Margie Medlin, which I worked on in stages between 2004 and 2007. (There’s a cassiel.com archive page giving more information.)
Personal Space was probably the most successful part of the show, but was also the only section in which I wasn’t directly involved (since it featured no virtual world animation, realtime audio processing or gestural control systems). I think it works because of its relative simplicity, and concentration on choreography rather than technology.