Two words.. Use XP. Seriously, Vista actually stands for something,
Viruses,
Intruders,
Spyware,
Trojans and,
Adware.
It's not offical, but you get the point. Nothing old works on it, which isn't good. It crashes all the time and, for some reason, my 20MB Connection Speed is drastically reduced. Go and get XP, hell, even ME is better than Vista.
Yes, Mac OS X is good, but I cannot find games for it!