I’ve often seen users request a dirt cheap video card with great TV-Out for a PVR PC. Sudhian Media has a review of the XGI Volari V3XT.. This thing is $50 and they claim the S-Video Out and HDTV Out support is very good.
It’s not intended as a 3D gaming card, but rather targeted at the HTPC market. It’s a small AGP slot card, so perhaps it’s perfect for those small form facter motherboards and cases.