Hi guys, I'm building my first HTPC, and need to choose my graphics card. I will be driving a Sony HS50 projector via VGA or HDMI, onto a 84" screen. I want to watch DVDs with the maximum possible quality - which I gather means using Theatretek or maybe Zoom Player, running FFDShow to sharpen/denoise the image. Currently my PC is an Athlon 2600XP with 512mb DDR333 ram, tho I am prepared for the fact that I might need to upgrade to a AMD64 to get enough CPU to use FFDShow at max resolution etc. I will play games occasionally so at first glance I felt that a 6800 or 6800GT would be best, probably with 256mb ram to give some future proofing. But I've read a few comments on here and elsewhere stating that the 6600 has better video processing and thus might be better for DVD playback. Was wondering if anyone could elaborate on what these differences might be and give a recommendation on the best card for me? Thanks! Tom PS. I guess I could also consider an ATI card of some sort, but I've always used NVidia, and as I gather they offer at least as good quality as ATI, I see no reason to switch.