Ok, thought I read somewhere that I could take my HD and put it on an unbanned 360 and then d/l new songs. Did this tonight and it didn't seem to work. Songs showed up on my buddy's xbox w/ my HD attached, but swapped the HD to my banned box and the new toons aren't there. Any ideas?

Anything downloadable is signed to the xbox that it was downloaded on. Only way to use downloaded content is to either buy whatever on that box, or sign on live.. which neither you can do