Right now Im working on my home theater system. I bought a 32" Samsung LCD a couple months back and just last week I got the HDDVD add on for the 360. The hddvd picture is absolutely amazing.

Just in case anyone would like to know, the HDDVD drive uses a standard USB cable to plug into the back of the 360 and apparently, it plugs into the back of a computer and needs no drivers to be used as an HDDVD player for any computer that can support HD picture output.