uhm... I do not have a usb webcam. But, I have a Nikon Coolpix L6 that has a usb2 interface. And I know you can hookup a usb webcam to iChatAV by using iChatUSBCam and macam. Does anyone know where I would find an app or driver that will turn my digital camera into a webcam? I just bought this camera thinking that iChatAV was plug n' play with whatever, but it appears that they only want you to use a firewire camera. Thoughts? Thanks in advance!