Newbie questions

I did a glance through this section and didn't see clear answers to the following questions. I have a HS10 and want to play computer games, try HDTV for the first time, have some PVR capabilities, and want to be able to control the whole thing from a remote control.


I'm thinking about the following and would like some feed back.


AMD 2200 XP processor

MyHD

Radeon 7500 video card

Audigy 2 sound card


My questions are, is the AMD processor a good choice or does Intel offer some advantage?


Is the MyHD card a good choice? Which version should I shoot for?

I'll be running off an antena.


Do I need a better video card? Which one? Wouldan ATI all in wonder card be a better option for what I want to do?


Is there a better or cheaper/more bang for the buck sound card I should get? I would preferably like to run coax audio for DD and DTS and I'm not sure this card does that. Is there something else I should be looking at?


Thanks for any feedback.