No need to. Just use FreeBSD.
So true, so true. I tried to think of one single Mac-only app that I've heard folks mention they want, and you know what? There are none! Games? None. Business software? None. Web browsing? Hah! Not even Mac people want the browser that comes with the Mac. Face it, Mac people, if it wasn't for Microsoft, you'd still be using AppleWorks.