A GeForce MX4000 64MB PCI
http://www.dabs.com/uk/channels/comp...quicklinx=2ZZY
Or Radeon 9200SE 128MB PCI
http://www.dabs.com/uk/channels/comp...R&familyid=186

Or something much more ballsy?

There are a few formats that my htpc can barely handle. I still get
dropped frames with HD video. Its a P4 2.6c, 512MB ram, 9600
standard. I can view everything on my a64 3200 with 6800gt though

Eric