Hm, I got myself an high-end I5 with Windows 7 and it's the nicest computer I've had since years. Much more stable than XP, boots faster and it actually stays fast (I only have recently reinstalled it because I upgraded my harddisk). I've cursed Windows so many times to the deepest layers of hell, but 7 is, well, actually, and this is hard for me to admit, but, eh, it is quite acceptable, quite nice even. Still, it needs work GUI-wise but I haven't tried Windows 8 yet.