An ATI video card with HD support and video inputs. No offer here to figure out which one but do look at the ATI web site.
Bob
I'm looking to use my spare LCD monitor as both a TV and as a monitor for gaming. Primarily, I'd like to connect my Xbox to my monitor for great picture quality and be able to watch HD shows. Do you have any recommendations? Thanks.

Chowhound
Comic Vine
GameFAQs
GameSpot
Giant Bomb
TechRepublic