I know in the new 2010 MBP their miniDP push out audio, would the miniDisplayPorts of the 2009 Mac Pros also push out audio? Would the 2010 Mac Pros? In terms of sound quality and range, would the audio be better through miniDP, digital audio outputs which the MP has, or via USB? How would you rank them? Perhaps they are so close in audio quality that ranking doesn't matter?? Thanks for your feedback!