Thanks Stanger89. My plan is to go w/ a new PC pre-loaded w/ Media Center 2004 & upgrade the system w/ an ATI All-In-Wonder 9800 Pro, so I should be good to go w/ a tuner card. Due to my limited knowledge w/ HTPC's, will the MCE (media center edition) software provide a program guide and the ability to hook up a sat receiver into it, to capture and record programs from DirecTV? Or am I missing something here. Do I need anything else? Or do I need everything different from what I stated above?
Forget about SageTV if you want an ATI AIW, Sage uses hardware encoding capture cards only. There are other solutions that will use an ATI AIW, but I can't imagine ever buying an AIW ever again now that I know the difference between a hardware and software encoding capture card.
Besides, I think you'll find that a plain non-AIW Radeon 9800 Pro (if you really need that much power for an HTPC, which you probably don't) + a Hauppage PVR-250 is elss than the AIW 9800 Pro, for a far better combination. IMO, All-In-Wonders are nothing more than a gimmick.