I'm doing some research for someone who needs a new graphics card, mostly for playing games on his XP Home machine. How would an Nvidia chipset-based card compare in 3D performance to the ATI Radeon 9000 Pro 128MB card for the same price of around $135? Anybody have an links to benchmarks comparing the 9000 Pro 128MB to some Nvidia cards? Also, how much of a difference in performance does the extra 64MB of video memory make over the 64MB 9000 Pro? Should he just stay away from that? Thanks.