Before I pick up the mini cable for this, I was wondering if anyone has any experience hooking up an Apple Cinema Display (20 inch) as a 2nd monitor for a 24" iMac? (2.8Ghz 4GB ram machine). I primarily want to use it for Aperture, to keep my photo and controls separate, and may also do that with the new FCE when I get a copy. What I'm wondering is how is the performance? Can the vid card in the iMac drive both of these satisfactorily? Thanks for any input.