I'm a crazy Mac person, but I don't draw the parallels between OS X and Vista nearly as much as everyone else seems to. o_o; They're not that alike. I guess you can only realize that if you really understand the underpinnings of both? Anyways, yes, it's an improvement over XP in subtle ways. There are a lot of features and small changes that will make your life a lot easier if you're on the computer a lot. If you don't really use your computer every day or whatever, probably not then. oo; Regardless, if you do get it, make sure you get at least Home Premium. Home Basic is worse than Windows ME.