I just discovered Deep Mix Moscow Radio - I've had it playing in WinAmp all day, and I am quite impressed. Instrumental techo so far, but with a great bass line and interesting changes to the music as time goes on.
These tracks are each like an hour long, but not boring. Click one of the links across the top of the screen to listen (if you have a player, most people do). 128k if you have a cable internet connection, 56k or less if you have a slower connection.
