With the arrival of the Intel-based Mac’s an enterprising bunch of people who are hacking their way into the recovery DVD to enable normal PCs to run Apple’s gorgeous user-interface and system on their normal (SSE2-supporting) system.
For more info, visit http://www.osx86project.org/, read the wiki and forums. The chief hacker making it possible goes by the handle maxxuss. This motherboard is recommended for playing with OS/X86.