Hey guys, I am planning on purchasing a Mac Pro (NOT the new black cylinder version). I have been looking at a 5,1 version with an 8-core X5550 @ 2.66Ghz with 16GB Ram etc. and I have a few questions. I was wondering how customisable they are? Will I be able to put any RAM, GPU, SSD and/or possible a new CPU in the future if I decide to upgrade? Is Apple still supporting the 5,1 version with software updates? (I saw that all Pros before 2008 will NOT be able to run Yosemite). Any guesses on how long they will support the old Pros? Will I be able to run both Yosemite and Windows 10 (when it officially launches. No hate, I will only run it for games ) Will I need certain adapters, cables etc for the upgrades? Is there something that I should know that could potentially put me off from buying one? I'm a Web Designer so I'll be running 2 (possibly 3) screens at the same time with software like Illustrator, Photoshop etc. Thanks guys. If this has been asked before, please point me to the write thread. I'm new here If not, I would be grateful if you could answer my questions.