I entered a contest ages ago for Guitar Hero shit, and won - but they sent me a code for 360 when I only have the game for PS3. The code expires in November, so I figure someone might get some fun out of it.
Here's the exact pack: http://marketplace.xbox.com/en-US/Product/My-Chemical-Romance-Track-Pack/6ed9e4fd-051c-4f01-b4b7-e355a94a64e9
Asking 0.5BTC, which if I understand how MS points are priced, is a hair under half price, but feel free to offer. Buyer goes first unless you've got considerably higher rep than me.