Sorry to interrupt the group hug here, but I'm a PC guy and have no intention of switching to Apple.
I'm a self taught computer user running 64 bit Windows Vista Business on a Heinz 57 brand Core Two Duo processor with dual monitor setup, two printers (one lazer and an Epson 4000 injet printer), flat bed scanner, Intuos digital tablet, three or four hard drives, LaCie NetworkSpace hard drive, on a Linksys hardwired and wireless network system connected to two other laptops ( both Sony Vaio). Keyboard and mouse are connected to the system by Bluetooth. I'm thinking of adding another video card to hardwire a 42” LCD flat screen TV into the setup.
Have Photoshop CS3, Illustrator CS3, Dreamweaver CS3, Flash Professional CS3, and Lightroom working perfectly among others. I even run a Mac program with an emulator with no problems also. (the software developer is a Apple fan who says he has no intention of providing a PC version of his software).
I have had no problems with the computer as it runs effortlessly. I have found Vista to be rock solid as far as my computing needs are concerned. No crashes, no burns, no driver problems, and no bluescreens of death, period.
As far as Apple computer users are concerned, I find them to be a little too smug for my liking. My experience has been that Apple users are always interested in pointing out the perceived foibles of the Windows system at any opportunity while I as a Windows system user just don't seem to care what Apple does, I am happy with my computer.
When I first got into computers, I had the choice of which system to use and decided to go with the more popular one (286 Intel) at the time because I had been burnt badly in the Betamax and VHS wars of long ago. Fairly or unfairly, Apple computers still seem to be tainted by this marketplace war for me after all these years. Apple at the time pursued a policy of controlling their hardware and software too tightly and stymied their growth while letting the more open Windows environment flourish to their detriment. It got so bad for Apple that Microsoft had to invest $150 million in Apple to keep them alive.
Before Apple gave up the Motorola processors for Intel, I was willing to entertain the idea of Apple computers as being a legitimately different computer system, but since the the changeover my feeling is that they can't be that different, so why bother with all the expense to convert over.
I used PCs until I entered college, was forced to switch to Mac because of the computing environment there,
This was a big turn off for me . Several years ago, I was investigating continuing education opportunities at SUNY (State University of New York) and happened to read the fine print which stipulated that I had to use Apple computers as part of my training. Did not appreciate the marketing push by Apple or SUNY in this respect, so went elsewhere for my educational needs.
The new Apple commercials are great; if you have to reinstall anyway, why not just switch?

Personally, I like the new commercial about Windows 7 being different from the previous version where they go back in time with the PC guy and hear him saying it time after time. As far as I'm concerned, the PC guy looks like he'd be a lot more fun to work with than the Apple guy. The Apple guy just stands around with his hands in his pockets as if he doesn't know what to do next.
And finally, if I was to switch away from Windows, it wouldn't be for Apple, but towards other open source software platforms. I have been pleasantly surprised by software such as Sun Microsystem's Open Office, Mozilla Firefox, the Arduino electronics open source microcontroller environment, and other such efforts.
Just my 2 cents, now it's time to batten down the hatches and wait for all the flames.
Cheers