We (here at the University) only use XP. Our IT manager prefers it to Vista (too much trouble!).

So until we are forced into it we will continue to use XP.

I have XP at home as well - only use the PC for internet at home as I much prefer working on Macs.
I only use a Mac in my office although I do have to use the PC's around the group at times.

But its like everything, you get familiar with whatever you have to use eventually.

Jan
xx