I'm planning on getting one but it's not cheap, considering I'm trying to save as much as I can as I'm starting my small company of 3. Only two of us needs a computer to work. Is it possible to have two users using the same Mac Pro at the same time, with each of us having our own keyboard/mouse/monitor? Or do you suggest getting two iMacs instead? Only one of us will be using graphics & cpu intensive apps, the other only needs to do accounting... If it isn't possible, how about a Windows machine?