I am running a hackintosh, as my second system, just because I was curious about the mac. And well. It is worth it. I recommend getting a P45 Motherboard like the P5Q Deluxe that I am using, and yes. you NEED an intel processor. To much hassle with anything else. Using OS X is something I do for watching movies, chatting, etc. Since it is a very sturdy os that just works. It is far more easy to use and deal with than any linux distro I have ever tried.
Gaming I do in windows 7. A simple reboot and selecting windows on the other harddrive from Chameleon (boot loader), and I am in windows. Easy as pie. If you need any help with setting it up. You can contact me. You need a licensed copy OS X though. It is a bit sketchy territory doing this. But it works fabulously.
You get a wickedly powerful MAC going down the hackintosh route. Compared if you spend the same amount of cash on buying a mac. But you also get the hassle of selecting the right components to get it to work, and dealing with tweaking certain aspects of the OS to get full functionality for networking, sound, etc. It is not difficult. You just need to prepare well in advance on what you need and read up on it.