Doesn't it involve some involved messing around though?
A little bit, yeah, but it's not nearly the hassle it used to be.
When I got into the OSX86 scene a couple years ago, booting OS X on non-Apple hardware required hacked kernels, an extremely small list of supported hardware and quite a bit of terminal work to make the system boot and run even semi-properly. Most display adapters were not supported and hard drives ran at a crawl because OS X didn't recognize the chipsets. In addition, the retail OS X disc could not be used, so you either had to hack together your own or use a pre-hacked image.
Now anyone who is able to burn a CD and follow instructions can install OSX on their PC, using a retail disc purchased at any Mac software retailer. The list of supported hardware is quite extensive and native functionality is generally achievable on most modern Intel Core 2-based systems. Both my notebook and desktop systems run faster on OS X than they do under Vista in terms of raw performance, let alone the usability improvements that OS X has over any Windows version.
http://wiki.osx86project.org
http://www.insanelymac.com
Note to the mods: There is nothing illegal on either of these sites. Installing OS X on non-Mac hardware does not violate any copyright laws.