I've been using 64studio for making music lately. I've also got a fat M-Audio Oxygen49 keyboard which has enough knobs and sliders on it to keep me trippin on it all for days. If only I could spend more time playing with it, dam work.
Below are some audio related links. Open source style.
Audio Links
streamtuner - Internet audio stream directory browser
Creative Commons - Info on what the Creative Commons license is about along with links to some sites which allow you to download Creative Commons media