I'm thinking of picking up the 27'' when it arrives, but I don't know how I'm going to be able to use the speakers in the new display? My MBP doesn't have MiniDisplay Port with audio and I don't think that the display has any ports to connect something else? Anyone got any ideas on how/if I can make audio work? It's a June 2009 Macbook Pro. 15'', 2.8Ghz stock model.