Vista works very well for me, I've been running Vista Business on
2 PC's for almost 2 years without any problems.
But I run the 32 bit verison, not 64, and both upgrade from XP and
clean install from scratch seems to run just as good, no probs.
If nessesary, it's also a option to run sofware in "XP mode", but
so far it's not been nessesary for me.
Good Luck and happy playing
GJ