Hello, I'm looking at the two 15 inch models of the just refreshed MacBook Pro. One with 2.2GHz + 512MB 6750 vs. 2.4GHz + 1GB 6770. (I might also be able to wait depending on the answers to the below questions): - Can I install 10.6.8? ( I basically have everything how I want it, tons of apps running at once). - are the specs correct? I saw someone saying the 6750 is just an underclocked 6770? (Can I use the overclocking tools in the guide here on macrumors to overclock from Fusion?, if i do bootcamp, will it stick when I reboot into Mac OS?) - How much difference will I see in graphics performance with twice the memory 1GB vs. 512 ? ( I use 3 or 4 browsers at once, with dozens of tabs each, run iTunes, XCode, Photoshop, Logic, speech rec, video transcoding, devon, a dozen third party enhancement apps in the background, Strata 3D, illustrator, indesign, word, neoffice, excel, etc., etc. (no I don't use all the heavy hitters at once, just two or three, or four)... lead into next question: -OpenCL: it's my understanding both of these cards support openCL, however, the built-in HD 3000 does not. In future implementations of Mac OS (i.e. 10.8) will this be a hindrance to me? Will there be OpenCL switching like there is GPU switching? Will this switching be wretched, like the first (or was it second) gen of MBP with two GPUs that had switching nightmares? Lastly what are the implications for my workflow with the above stated, will opencl/gpu ram not come into play? (it is my experience that a faster card even increases the rendering of webpages, however, like normal memory, does having WAY more than u need really help? Like having 32GB of Ram (possible with OWC kit) in my (non-existent) Mac Pro help me build non-huge files in Xcode faster than 16GB? I don't think openCL has been greatly expanded in 10.7 to my knowledge. When opencl becomes more prevalent I want to be ready! -Will the next gen (ivy bridge) have a case redesign without FireWire 800, or an Optical drive? Just one soundport for in/out? ( could live w/o optical if i had to, but not the other two.) I'm coming from a Late 2009 15-inch 2.53Ghz with 256mb 9400m. It's a loaner from work, but I work the thing really hard, it can't really keep up, and the other day there were messed up graphic artifacts on the screen in a safari window when i woke it up (could be the display I guess). It's only a matter of time before this thing blows up on me probably (yes I have a fan under it, and no, the fans aren't running at max all day). Basically I'm a desktop guy, but I need to be mobile, and the Mac Pro's are too $$$, I have education discount BTW b/c I work at a school. Yes, I done a bunch of reading on this, but I'm still unclear on some of it, that's why I'm asking. Thanks to anyone who even answers one of these questions, didn't mean to be so breathy, just clear.