My HTPC is a shuttle G5 system I won form Microsoft about 5 years ago. It has been working great with Windows media center but I was thinking of getting into blu-ray. The pc has an intel Pentium 3.2 GHz, 1GB RAM and an NVIDIA 6600 Graphics card. Sound is onboard 5.1. I have read the numerous threads and admit a lot has changed since I began tinkering with this system 5 years ago. Problem is the Shuttle PC seems to have a proprietary MB and is a very small form factor. I cannot even find on shuttles site my ability to upgrade the processor or graphics. I really like the style of the case but does anyone have experience with this system and upgrade potential? I figure I would at least need a new graphics card but do you think this alone will do it?