Nice. But OSX is bordering on illegal. It's not sanctioned by Apple, and isn't always easy to do, which is why non-techies don't do it.
Here is a multi-platform benchmark:http://www.primatelabs.ca/geekbench/
This is the most popular one, and I usually use it... though it's kind of BS because it only uses tests that UNIX based systems excel on (photo rendering stuff) and has no 3D bench part of it.
Why would go out and buy a copy of OSX when you have OS's like Ubuntu and OpenSUSE at your disposal?