I've got an old P4 system, 2.0ghz, 512mb rdram, and an ATI Radeon 9600. I was thinking with a GPU upgrade, it could play HD content acquired through alternate channels *cough*, as well as HD podcasts, encoded h.264. Anyone have any experience with this? Is it worth my money to drop in a newer, AGP based gfx card? Does boxee even do gpu decoding?
Edit: Probably gonna do it under Ubuntu 8.10