I have a 2008 3,1 Pro, currently using a pair of Apple 24" Cinema displays. I bought them used a few years ago, and they are looking less than great at this point - too much of the usable screen has areas like gray streakiness that interfere with my work. I wanted to go to the Apple 27", but it's apparently not compatible according to Apple sales. Any suggestions for an Apple solution, or another brand that will be high quality for my graphic/print/photo work? Many thanks.