I have a 24" iMac circa 2006.
Ever since embracing Linux, I always wanted to install Linux on my iMac. Two things held me back. One was that I was unable to record my radio shows from the radio I had attached to my iMac and the other was that I was unable to use the built in camera for Skype.
I am pleased to announce, and I'm not sure why, that I am at this moment recording from my radio while booted from my Linux Mint 14 XFCE CD. I think what may have made this possible is that I am using the Pulse Audio Volume Control app. Not sure but I am so HAPPY that I have this working. Now that I have to figure out how to be able to use the built in camera and... (like Steve Jobs would say), one more thing. I need to be able to quickly edit some of my video files so that I can extract snippets of video. On my iMac I use an app called mpeg streamclip. I need to find something on the Linux side that works as well as this nifty app.