This is very cool, and the music's good too:
http://www.wired.com/wiredscience/2009/08/visualizations/2/
Some of the others are worth watching as well, but lack any music. You can tell this guy really esteems his research productions beyond just the science. Genuine science elevated to an art where it should always be esteemed, sometimes irrespective of how it may be used.
I'd love to see a simulation along these lines of how data moves through a computer--much slowed down, of course. Just exactly how would that be conceived?