If you are wondering whether to get a new PC with Windows Vista then take a look at the February edition of the PC Authority magazine. It has a comparison of XP and Vista over various categories. Overall they have Vista coming out on top but in the last two categories, Performance and Responsiveness they rate XP as better than Vista.
For now I think I will stick with XP. Vista certainly looks very nice but I think I will wait and see what they come up with next.