One of my favorite things in the world is Tim Sweeney's Beats in Space program. It has become incredibly influential around the world, and Tim is doing very well for himself as a DJ. Couldn't happen to a nicer guy.
Here are two of my favorite mixes ever from the show:
Paul Psychonaut- May 16, 2002
The Avalanches- November 29, 2001
Drop me a comment and let me know what your fav sets are on there. Also, do keep an eye out for my interview with Tim over at The Pop Manifesto in the coming month or so.