I was upgrading a relatives computer which got me thinking to upgrade one of mine. It is pentium D 3.2 935 prescott on a gigabyte 965p-s3 board with an apevia 500w psu with 1 6pin pci-e connector. I was thinking switching the video card to a ati 5770? Any problems with that or better recommendations, I would sincerely appreciate some opinions. Thanks!