A difficult decision altogether i think,as was the case with all the other releases of windows too..Just when you get comfortable using the one the next release is only weeks away..I have also noticed here in SA that flyers from leading pc retailers now sell vista with most of their new pc,s or recommend it..My personal choice would be to still have XP PROF and make a dual boot with VISTA.That way you can gradually move towards vista when you are good and ready..Question though from my side anyway is..are they going to share and talk to one another??