I want to share you my experience with OSX86. I successfully Installed MAC OSX 10.5.2 on my P.C.
Intel DG33FB Motherboard.
Intel E6750 Core2Duo Processor.
Nvidia 8600 Graphic Card.
2 GB Kingston DDR2 667 Ram.
I tried a lot but Finally i taste success with Kalyway Patched DVD. The guide which helps me a lot is
iHackintosh: Dual or Triple booting OSx86 & Windows on the same HDD
This is a cool place where you can found most of stuff needed for OSX86.
Some other useful links are.
iHackintosh Blog
Wiki.osx86project
Insanelymac forums