While I have owned a Macbook Pro for almost 2 years now, I did dabble (and occasionally still do) in trying to run various flavors of Mac OS X on Intel hardware. I successfully had the Kalyway version of 10.5.2 running on my Dell Latitude D610 laptop, though I could never get the external VGA monitor to work, even with a rigged paper clip to short the pin out.
Anyway, I came across this link at osx86project.org to run OS X under VMware. This was immediately interesting to me, as I have been on a mission to eliminate hardware as much as possible, thereby cutting my electricity bill and carbon footprint.