When BT came out with This Binary Universe two years ago it really set a bench mark in a new form of digital art (if you've never heard/seen it, I highly recommend buying the CD/DVD). The Animusic project is very cleverly done, as the animations are actually performing the music (in TBU the pictures were simply a sometimes-narrative accompanniment to the music, albeit pretty spectacular animations). It's really awesome to watch, and the music is pretty cool too.
