I dont have a Mac, but i setup a hackintosh (MacOSX running in pc) by following guide from this blog http://tonymacx86.blogspot.com/. If your pc spec is compatible, the Mac OSX will running flawlessly, just like in normal Mac.
Since you ask this question, I assume you dont want to fork a money to buy Mac, so setup a hackintosh machine is the best option for you. You just need to spend some money for buying legal copy of Mac OSX. Yeah I also setup the hackintosh in order to develop iphone apps on a pc.