I wonder how many of the Hackintosh people have tried Linux. I would say it is much simpler to setup a nice Linux distro and make it look like a Mac... That is if you are into that sort of thing.
All you would need is Gnome, an OS X theme and AWN. It is free and legal.
I ran a Macbook pro for a few years in college and I cant bring myself to switch back from Linux. The only thing that might put me on Mac is developing an iPhone/Touch app. I feel Linux is on par or somewhere not too far behind. Am I wrong here?