Athlon's or Durons LOVE 512 of RAM due to the thoroughput of bus speed make sure you buy good chips though, I had bad luck with no-names with bad sectors of memory. Your combo sounds decent although make sure the onboard audio can be disabled, otherwise expect the exstacy not to work due to irq and dma problems. other then that if the bios has the ability to set agp aperture size, keep that to a minimum as well; because basically you are telling the system to "steal" that percentage of memory for the card so lower it to 16 MB--trust me your PC will love it because the video you have has enough memory on it to support almost anything you throw at it. Good Luck and have fun!!!


Wanted to add to this yes--use a 350-400 watt supply or the system will be slow due to the power hit from the video and cpu or crash consistently!!!!