Listen, I like much about the Mac and hate MicroSoft. I myself use Linux. Last time I looked it was still against the whim of the Almighty Jobs(who is not that nice of a person, just look at the way he treated Woz) to install the x86 OSX on a non-Apple piece of hardware, say what you want about openDarwin but Apple has not been that supportive of the project. So, how much would it cost me to get OSX on my Dual-Core Opteron? not possible legally.