My performance rig (new media artist)

Two computers, camera feeds, custom designed moveable video projector, Wii controllers, iPod controllers, Midi controller.
I use it for video feeds, image processing, and live drawing while rolling through a museum space performing and projecting video onto museum artifacts.
Software: Final Cut Pro, Isadora, After Effects, Corel Painter 11, OSCulator, iPod app TouchOSC... and many more.