First Draft

Well, took a shot at creating a prototype UI. As you can see it has a source list like iTunes and I'm planning for the player controls to be at the bottom (the library will be drawer-like to create a little "mini-player"). I'm hoping for the system icons to be little cartridges (yes, inspired by Mimeo).

Rebounds welcome if you're into Mac UI. :D *subtly cries out for help*