I'm planning on buying mac pro but can't decide between quad core and 8 core processor... I've read a lot on this forum already but can't find an answer if 8 core processor would be better for running vmware fusion with windows? I would run most of the time Lighroom, Photoshop on OSX and on the windows I would have other application running at the same time. I know that for photography workflow quadcore is more than enough for now, but also I would like to keep this computer for another 3-4 years. what is your opinion?