i dont own a mac, but i have already read several times that making a second partition with windows on intel macs works. Actually people who have a mac do that in order to install some games that only run on windows.
But the other way around doesnt work
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I have read that on an intel pc, there are ways to do it, but you'd have to hack into the mac os installation cd before (an all made hacked version is supposed to exist, but i never got my hands on one and anyways, there are no intel components in my pc). Such a hacked mac os is called a hackintoch
have you seen this link?
http://www.apple.com/macosx/bootcamp/
Looks like you just need bootcamp and a windows installation cd.