37 seconds, the actors were that convincing I started to gag!
Windows 7 (having used it briefly) is a significant improvement over Vista (it's what Vista should have been in the first place really), but it's still no OSX.
I have and use both Mac (which I'm using now) and PC regularly, and sadly my work PC has Vista on it which is awful! My new(ish) desktop I installed XP on, cos at least they've had time to find fixes to most of its issues, and hardware in 2009 is finally fast enough to run an OS that came out in 2002 without falling over all the time!
OSX (touchwood) just works, and keeps on working… All we need is for Apple to hurry up and start allowing PC Manufacturers to install OSX on their machines under license! Or to start selling it as an OS for general release, that works on all hardware (with hacks, kernel patches or whatever)… That'll be the day!