Ben Scott introduced me to the hard trance section on mp3.com... it's wonderful coding music. Go to http://genres.mp3.com/music/electronic/trance/hard_trance/ and click on "Hi-Fi Play". If you want to download all of the songs from within some UNIX variant (Cygwin works), save the .m3u file to your hard drive and type 'cat hard_trance.m3u | xargs wget'. Prepare to use LOTS of bandwidth and hard drive space, though. :)