I am a mac user wannabe. I am a PC user right now, and hope to switch to an iMac 20 within the next 6-9 months. I know that iMacs have a built in camera, and I assume that they have a built in mic as well? The reason I ask is because I do a fair amount of video conferencing with my kids 600 miles away. I am using a Logitech Quickcam Fusion which I love. It has a built in mic that seems to work very well and the cam does something like 1.3 megapixels so it is very clear. I know it will work on a Mac, because the software to do so is on the disc that came with it. Does anyone know if i am likely to run into any conflicts trying to use the Fusion? I guess I am just not clear on how the system will know what cam and mic I want to use. Maybe whatever chat software I am using at the time will see both and ask which I want to use? Sorry for asking such a noob question, but I've never had a computer with more than one cam before.