Not surprising. It's a couple of years late and is a big resource hog. It has some neat features and DX10 will force gamers to move over.
But that's it. If you don't game I suggest you checking out Linux Ubuntu. It has drivers for most hardware and works as good as Windows for Office-work(Open-office among others), instant messaging(AMSN and GAIM), web surfing(firefox).
It demands a bit tinkering if you want to run Windows applications through emulation but IMO it's worth it.
The biggest "selling" point is that it's free.
Just download the ISO and burn it to a CD. You can always try booting from it and try it out (it's fully functional) before installing the OS.
Download
If you are ready to try something different it's for you.
