Steam is the easiest place.
Online at amazon.com or something like that.
Yep. You can also buy the Fusion DLC pack to get the First and Second Encounters in one package.
You should only buy an HD DVD player for two reasons: 1. If you can afford to buy the HD DVD player and 2. Only if you buy HD DVDs all the time and can't bear to watch it without the best quality.
you have to buy the HD cables, but yes.
You can add a HD drive to your PC, add a HD capable graphics card and buy a HD monitor. - Neeraj Sharma
Yes, Best Buy does carry Dell HD projectors. You can get one for under $900.
You mean where people play co-op sessions of campaign? No. That's very rare. The only game I know with that is Serious Sam: The Second Encounter HD.
No buy BLU ray it's way better quality than that HD garbage
All TVS that you can buy are ready for the digital signal. You do not have to buy an HD TV to get a digital signal.
Most require you to buy or rent a HD converter box from them, otherwise you will not be getting HD to your HDTV.
1. buy a HD-TV, a non HD-tv can't become an HD-TV 2. get HD channels from your cable provider 3. get a Blu-ray player
HD LCD is a type of T.V HD - High Definition LCD - Liquid Crystal Display