I think you're going to want VGA to component--analog to analog is just a matter of rewiring the cables. DVI to component will either be pulling from the analog portion of the DVI connector (if it has one) and will therefore be VGA, or it will be an expensive DAC. I have yet to see decent external video DACs for computer applications. Also, check your video card for ~1900x1080. You do want it to be widescreen, after all. I think the normal aspect number with 1080 would be 1400 or so--which you don't want.
What video card do you have?
I've seen 8800GTs and 9600GTs (you'll pay a premium for those) that have component out adapters. Many modern video cards with s-video outs will include an adapter to component.
