i just built a p4 1.8 gig with 2 sticks of 512 ddr memory,radeon card with 64 meg of onboard memory.sound blaster audigy,40 gig hard drive,runnin xp home edition.did a few tweaks.now its runnin at 1923.thought about the 2.5 but the money difference was too much.still very well pleased and im sure you will be too.good luck with it...BUTCHER