Finally built our media center yesterday out of stuff I had hanging about and a couple of new components.
Asus P5B (old)
C2D E6750 (old)
2gb DDR2 800 (old)
Liteon DVD (old)
500gb SATA II (new)
Media Center case (new)
Sapphire 2400pro with HDMI out (old)
Wireless logitech KB + M (new)
Running vista ultimate hooked up to a 37" 1080p Sharp.
Pretty pleased with the results
I'll pop up a pic or 2 later when I get the chance.