I believe the Mac OS should only be installed in a Macintosh computer, as stated in the EULA. Source: http://images.apple.com/legal/sla/docs/macosx105.pdf
Here's a suggestion: OS X costs 6-7K depending on the store you're buying from. A used iBook is 15-20K depending on the specs and aesthetics. For at least 8K more, you get a free laptop with your OS X. Or a nice laptop with free OS X worth 7K. Quite a deal isn't it?!
Plus, you'll be virus free (this issue is subjective I know, but generally speaking) compared to Windows machines!