Will also try Jay and Disco's suggestions.
if you are an adult music aficionando then you can't do worse then tune into WholeWheatRadio
http://www.wholewheatradio.org/wiki/index.php/Main_Page
Damn! they're GOOD!
Here's the link
http://www.class95.sg/hearuslive.htm
I like Pandora http://www.pandora.com myself. You type in a song or band, and it'll build an entire playlist based on what that song sounds like. Good on the fly playlists.
Ever tried Shoutcast? www.shoutcast.com
All sorts of stuff on there....Mp3 quality sound, too..