If you are considering abandoning Microsoft due to Vista issues and buying a Mac. DONT!!!
Long term Mac users will tell you that excessive sales of Macs will encourage virus and spyware writers to focus their attention on our beloved machines and sooner or later one of them may succeed in writing something nasty.
Please stick to your highly advanced machines based on NT technology. Whatever the flaws, you have stuck with them so far. Don't abandon Microsoft!
I thank you.