Im interested in purchasing a mac pro but im curios about how the multi core technology works with regards to CPU usage. 1] Does OSX distribute itself over the multiple cores during: a) bootup b) run time [if not then are the cores just for use of 3D rendering/code compilation.] 2] Will games for windows or OSX (mostly OSX) utilise the multiple cores? For the most part i want to run XCode and develop Obj-C, Run freeBSD and some BSD derivatives. I also want to play games on the machine, i do appreciate it is not a gaming machine however i dont want multiple computers in my room as space is incredibly limited so it will be a Mac pro, i just need to know if i got maxed out processor spec would the extra cores actually be used at all?? If they are never ever used because of the way software and/or OSX operates then there isnt much point. Thanks in advance guys.