I'm looking at buying a Mac Air, but a 13" display is too limiting when I'm in my home office. Ideally I'd get the 27" TB display, but I have room for only a 24". If I get a used 24" Cinema display and connect it to the Air's TB port, will I need additional cables (presumably USB) to make use of the display's speakers, camera, and microphone? What about if I use an older display-port iMac instead of the Cinema display? Or is there a better way to get a larger (but not 27") screen with audio/video in/out, without a bunch of cables? Seems like I've read a million posts trying to understand this. If the answer is already out there, I'd be happy if someone points me at the thread. Thanks for any help.