I'm building a HTPC around a ceton card. I have an eclipse mother board laying around and a radeon HD5770 video card and I was wondering if this would be a good foundation for a HTPC. If so which intel chip would work best.
That combo is more than sufficient - if not overkill - for an HTPC, but your problem is going to be noise. Personally, I use a minimalist Jetway mini-TOP JBC600C993-52W-BW fitted with a Mementous XL hybrid drive and 4GB DDR3-1066 memory It is running Win 7 x64 with VLC media player connected to an HT Receiver and 42" Panasonic HD TV. It works perfectly, is whisper quiet and uses minimal power (around 30W average measured at the mains socket).