jagangjee,
As far as picture quality goes, The HTPC though the Radeon, using the latest Catalyst software and color/picture overlay, I can get a much better picture though the PC. I have also found that WinDVD 4.0 plays the video much, much smooth, while Windows Media Player and PowerDVD both have a flicker on fast action parts of the movies. Still trying to figure out that one. One nice thing about using the HTPC, is that High Resolution movie titles that are out for Windows Media Player 9. I have already picked up T2, The Great Choral Reef, and Step Into The Liquid, all in 1080i resolution. They look absolutely amazing!
The picture quality of the Xbox is also good. It auto-scales for the TV and it's sometimes easier to just pop in the disk on the Xbox than it is to boot the PC, launch the video, turn off the extra programs (I hate MSN Instant Messenger popping up in the middle of scene. I notice more graininess with the Xbox (graininess being a very non-technical term), but it functions quite well.
I, as well as many others, pronounce WEGA as "V-E-G-A". I am totally unsure of the origin of this word or it's creators intent on how it should be pronounced. If you find out, please do tell.
picky,
Whoa, definitely looks nicer completely finished. I like the color choices and the lighting, very nice....., but hows it sound?

Question, is your HT also used for casual viewing/listening or is it mainly just used for serious movie events?
Scp53,
Thanks! The Acoustic tiling does rattle a bit in the corner where the sub is. I have some that are a tad loose. I have some framed wall mounts (pictures, mirrors, ect...) that need to be remounted. But the only 'rattle' I get is from certain bass frequencies....usually around 65hz. Other than that, it's not bad at all. The RS-3's that are mounted in the back are completely isolated from the ceiling tiling, so there's no transference there. I build a recording room on the other end of the basement, and if I had the time and $$$, I would have loved to mimic the construction design of the walls and ceiling to optimize the sound. Oh, so much work...but it's so fun....I was complaining to my friend about having to do all this setup to get going (running on 3-4 hours of sleep trying to get it all setup in an evening...), he was quick to remind me how fortunate I was to have such
problems. I thanked him for his perspective.