Pros USE Stright DVI
I believe you'll need to under scan (maby I only under scan for my CRT) to your Native Resolution but the Drivers can do that. I guess you could see how the T.V. Handles 720P 1280X720
Don't go above 60 HZ I think it could mess up your T.V.
I've never seen a 15 Pin D-Sub to RGB Cable before but you can use the Component out on most modern video cards. I believe it's S-Video to Component.
I under scan my resolution to 1166X664 or I can't see the start button.