I'm triple booting my OS X hackintosh with XP and Ubuntu; it's running on a totally stock el-cheapo HP Intel Core 2 Duo setup (not even sure of the exact mobo ATM, as it's been about two years since I've done the install, but it is an ASUS.) Everything still works good on it... I grabbed the .ISO from MiniNova at the time, although I know there is a couple on Demonoid...

What are the specs on this PC you've got that you've installed OS X on? Is OS X the only OS on it right now (i.e., no other boot loaders)?