Seems like everyone on these forums has ordered the top-range 15" for the GPU slightly faster processor. How about those of you with base configurations sound off on your experiences so far? From reading around it sounds like all the driver / heat issues are isolated to the higher-end configurations, has this been your experience? How hot do the base models run with the lesser GPU and CPU? I'd also be interested to hear what machines you upgraded from, and how you're finding the performance in your day to day tasks compared to your previous computer. I'll probably pull the trigger on a base 15" hi res anti-glare soon, and can't wait get developing on it. Coming from a 2007 15" C2D the extra space and horsepower should be a real pleasure.