Ars does its usual thorough stuff on the new Mac Pro. According to Ars: "The interior layout is a big win for Apple. Four drive bays is adequate for a pro tower, and the fact that each drive is on its own bus is a smart design decision. It's also great having room for a second optical drive. In terms of performance, it's good news - with a caveat. While the fully-buffered memory, the screaming-fast Xeon 5150s, and the 1333MHz FSB are all great, Apple's video card choice is most definitely not. It doesn't fit, and it detracts from the overall experience. Despite that, the Mac Pro is a very solid graphics or video editing workstation. When all the major 'pro' applications have made the transition to Universal Binaries, the PowerPC years will be little more than a memory."