I know that many people know about PearPC and CherryOS but this is a great tutorial to installing OS X on a PC. It shows graphics at each step and links to all the necessary files. The tutorial utilizes PearPC. Read more.

Also, here is a nifty Windows installer emulator. It will teach you how to install Windows without making any changes to your hard drive. It just simulates the setup exactly as a real installer would, and you don't need to restart your computer. The package also includes an e-book that explains each step.
Download: Mirror 1 | Mirror 2

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