Try out this free program called Telekinisis:
http://code.google.com/p/telekinesis/ It lets you view all your files plus many more. You can even go to your iTunes folder and stream music! Unfortunatly, Telekinisis cannot stream locked or protected music. A simple way around that is to burn the protected songs you want to a cd and then load them back on your computer and they should be unlocked.
hope this works for you
feel free if you have any more questions
