It is pretty easy. Just let Tam know early enough. I have changed stuff before. I have my Betas preordered thru him now. He has the new Alphas and the 1/100 items on preorder also.
I do not think it will matter much. Many portable DVD players can play Divx, Xvid and Mp4. The one I have is Progressive scan out and can hook to the TV. Also many HD TVs have VGA input. Plus I had Tversity streaming them before the update.
Here is the full list for the Dec 4 update.
http://blogs.msdn.com/xboxteam/archive/200...tem-update.aspx
I have not gotten COD4 yet.
After work I normaly play 11:00pm EST to whenever.
HALO 3, GRAW 2, Rainbow Six Vegas, Gears of War, Marvel Ultimate Aliance, etc.