We can't discuss that because it violates the license of that OS. The forum policies forbid this discussion as well.
So unless you are using Apple parts to make that computer, this discussion will get locked.
I really like apple OS-X snow leopard, but my old mac is too outdated and a new mac is out of my price range. Would it be possible to build a desk top with similar specs to the mac-book pro and run the same software?