I had a CD stuck in my new iMac, so I looked through the book that came with it. I first found out that you should not try and shove a paperclip in the little hole on the iMac's screen to get a CD out, because that's the iMac microphone! I found out how to get the CD out, but just now I decided to into iMovie and record my voice and check if I completely destroyed the microphone with my paperclip. Luckily it was perfectly fine, but I discovered that the iMac's mic rules! It's crystal clear. All the Macs Id had before werent this clear. Its pretty cool.