I'm sorry, but I stick with XP for the mean time!
If I buy a new PC, I might have to choose between Vista or 7; then it's 7 for sure!
But I still have an OEM version of XP which I prefer over Vista,and over 7.
The switch to 7 is not going to be hard. It's just that I DON'T NEED an OS that is too overburdened with things,and on my laptop, I value battery life over anything else!
XP is quick, and my notebook runs cooler on it then on the RC of Win7, so I'm not planning to upgrade anytime soon!
Another thing is that the responsiveness of Win7 is very similar to Linux and MacOs.
WinXP is undoubtedly the most responsive of them all; my experience tells me so!
(at least, one that is optimized for performance).
MacOs? Forget that!
Those who use Windows stay with Windows!
MacOs is nothing but a big cover. You can't change anything underneath it!
It's too simple, and a change to MacOs from XP is much greater than one to Win7.