I'm an avid reader of Anandtech's reviews. They do a great job and aren't afraid to push the limits. This week they swapped out the stock Xeon processor in a Mac Pro for a pre-release quad core from Intel. You gotta love those guys. How many of you would pry out your processor from a new Mac Pro let alone put in some pre-release chip in it's place. Thankfully Anandtech has huge balls and Mac Pro owners now have an easy upgrade path in the future.