forgive the ignorance of an owner of a now defective MBP. In light of my machine's desire to pass away into the place where all good souls go, I'm inquiring into the feasibility of this lowly peasant to become a recipient of a glorious mac pro. I'm curious about the upgradability (it's a word, I'm sure of it...) of the mac pro. I understand the older models have the ability to gorge themselves on tasty new GPU's, but in purchasing a model mid cycle ( 2 months until the average), what are the real chances of being able to retrofit some new, shiny and superior tech into my computational machine? sixty or so days doesn't seem to be the amount of time I'd want to have the top-of-the-line model. I understand the question to be a purely hypothetical one with no one true answer, so don't feel frightened to speak you opinion on the matter. As always with me, some tasty cookies and sunshine for the best reply.