Being a powerbook guy and not having any experience with any Apple product with a built-in iSight. does the iMac allow a 2nd webcam? I will be replacing my xp box this fall after the new version of OSX comes out with a new iMac. I would like to be able to use a 2nd webcam in addition to the builtin. I would manually toggle between them for each purpose. Like monitoring the pets etc, instead of having to physically turn the iMac around to do it.