i have a question, currently i have a mac pro 2.66 Dual Core intel Xeon Processor, 6 gb ram. i am blown away by what the new mac pro's come with. is it possible, and easy to upgrade my processor from a dual core, to either the very latest, or to a quad core model? and if it IS possible, after replacing (or service to replace cpu) will i need to reinstall OSX and all my document and program files? and lastley, if it IS possible, where would i go about finding a faster processor?