I am considering getting a Mac Pro or iMac. I was wondering if they would make good gaming machines when compared to a PC. The new Mac Pro which is yet to be released will house two GPU's. Does that make it a true SLI machine? Are the GPU's found in Macs the same kind of GPU found in PC's? Will it be able to handle games that have intense graphics or would I just be betting off sticking to PC I regards to gaming? Thoughts?