I know that there are better options to choose from than a Mac Pro for gaming purposes only. But my question to you all is what kind of Mac Pro configuration will I be needing for serious gaming? I wont be editing or doing any kind of demanding work on it, simply gaming. Will I need the 4, 6 or 12 core? How much RAM? What graphics card? Money is not an issue, just looking for a configuration that fits my needs and that I can take full advantage of. Thanks in advance!