Newbie Hardware Questions...

[juanbond]

I'm looking to replace most of my components for my entertainment center using Media Portal.

Here's what I have:
Toshiba 52HM84 (52" DLP)
Motorolla HDTV cable box (Comcast - St. Paul, MN)

Here's what I want to do:
Watch TV in HD (on HD channels obviously)
Record in HD
Play HD recorded programs in HD
DVD HDMI™ Video Upconversion - 720p/1080i
Replace Cable Box (if possible)

So in other words I want my system to be an all-in-one:
HD TiVO and HD Upconversion DVD player and HD Cable Box

So my question is what TV tuner/Video card am I going to need? Right now I'm looking at getting the ATI ALL-IN-WONDER Radeon X800XL 256MB GDDR3 AGP 4X/8X Video Card that has HDTV output on it and a TV tuner. But, does that TV tuner record in HD and views in HD? Should I just get the ATI HDTV Tuner and another All-in-Wonder that has HDTV output but no tuner?

What hardware will I need. I've already built the guts of a system, now I just want to make sure that I will have the right TV Tuner/Video Card for the job.

Also, I have a Logitech Harmony remote... Is it possible to use that with Media Portal?

I’m really anxious to start up a system with Media Portal and any help/recommendations will help greatly!

Thanks in advance!

- JuanBond