XP Pro, because I work on Windows networks for a living so I need an XP machine. XP is great if you know how to keep it running, I've gone 5 years with no virus protection and no viruses, major crashes, etc. Almost never have to reboot like the old MS OS's. The average consumer, on the other hand... not so good at keeping XP running smoothly. It's unbelievable how many viruses some people get even with virus protection!







