I have been using and fixing Macintosh and Windows computers for more than 20 years. In this time I have learnt a lot and can offer you advice and help on repairs, upgrades and the benefits of using both PC and Apple Mac computers.
The power of modern computers are giving people more options, that is you can now run Windows on a Mac and Mac on a PC. A good way to do this and try out different operating systems is to use virtualisation software. VMware, Parallels or VirtualBox (which is free) all are all quite good virtualisation programs. Here is a link to a YouTube video on how you can setup Mac Osx on Windows.
You can also have Mac Osx booting natively on a PC or even better you could by a real Mac and have a more trouble free computer experience.
For more information on installing Mac Osx visit the tonymacs website.