and the questions I had were. Anyone else made this change? I am not so much concerned with the processor speed jump as the video card; yes I game on this machine - usually just WOW under OS X or on the odd occasion some older windows only games on the flip side. What I am curious about is, is the performance jump big enough to justify the jump? How long did it take you to adjust to the glossy screen over the matte screen? I am hoping for barefeats to test the two versus each other in the future. Also, do the aluminum versions give off a lot of heat?