However, by doing so, you break Apple's EULA; resulting in a lack of support off Apple. So don't complain when something goes wrong.
It is a heavily discussed topic are Hackintosh's, some people think you have the right to do whatever you want with the software you have bought; and therefore, rightly own. Other people think you have to stick to Apple's EULA because it rips off Apple. Some people think there is a loophole in the EULA that let's you do it.
I'm totally neutral about the whole thing, however I think if Apple didn't mind, then OS X would be available for PC and Apple would not be suing counterfeit Mac companies.
I know its a little off topic, but I thought you should know. No flame-war intended.