does anybody have one of these as i'm going to get it for a relative, to go with their 400mhz imac, i know it doesn't make the requirements, but ichatusbcam, the software you have to buy lets it run on his imac, what do you think of the cam and has anybody used it with a g3 imac? p.s. does it work in sync with the imacs internal imac mic, thanks