My Mac Pro 2008 8 core 2.8 is needing a new logic board. Mostly because the one riser slot is bad, and some other things that are more minor. I have the original 8800 and the 5770 graphics cards for it, 6GB ram, the superdrives do not work either and "need" replaced. I was quoted $1449 for replace the logic board. But even after I fixed it, it seems I could only sell the machine for 500-600 bucks. Really seems stupid to fix it for that much when the new MBPs have the same or higher cinebench and geekbench scores as this MP does. I do some encoding for video, but the 4 harddrive slots were the main pull to a MP and I can get fast externals now with USB 3 and thunderbolt and still seemingly have just as good/better encoding with a MBP, assuming the cinebench and geekbench scores are right. I really want to try to sell my MP, or part it out and get a MBP. Where could I do that, are what do guys think is the best solution?