sXb is a Slackware distribution that runs on the Xbox. It is based on the SLAX LiveCD and can be run from CD or installed to the Xbox hard drive as either FATX or as a ReiserFS loopback.
I went to auction at a mom/pops video game store few months ago that was closing, and bought 11 slims for $200, 1 was DOA but 10 work fine. so hella deal. Already rgh3'ed 8 of them. But most younger kids don't even want anymore, unless it plays stupid "fortnight", or newer shit.