My mate has an emachine pc with a 2.4Ghz Celeron cpu and I have recommended upgrading his gfx card from 64Mb Intel Extreme to a RadeonX800 +Rialto and his ram to 1Gb Corsair Value Select 270, he currently only has 256mb of ram. He wants to upgrade so that he can play GT Legends and Live for Speed. Do you think that these upgrades will work well with his cpu.