Here I sit Christmas Eve, much research over last 2months, b4 purchasing parts. Trying to put systems together for sons for Christmas. Not going to happen!!! Helpppppppp Parts: MSI 925X Neo-motherboard LGA775, Pentium 4 Processor 3.4 800(775)925x, Radeon X700 PRO PCI Express 256M,Power Supply 485W,DDR2 512M PC533