I brought Vista on launch, used it for 10 months and then decided to go to XP. My PC then was socket 939 3800+X2, 2GB DDR and and 8600. It sure could handle it but anwyays I have been back on Vista for coming up to a year now. It is the best OS IMO. I do boot Ubuntu which I use when I am feeling experimental and run XP in VMs for messing with like downloading viruses and the like however Vista all the way uintil 7 hits the shops