A while back I got interested in the Live Feed function. I went out and bought a Logitech USB webcam and found the performance to be total crap. While trying to get it to work I ran across a Sony Handycam 8 my wife had bought a few years ago and which I had forgot all about. I got the Ilink firewire cable, hooked it up and am amazed at the smooth video it puts out in Live Feed. I remember being pissed at my wife for buying it knowing we would never use it and now I am happy she did. I was actually going to buy a new video camera just to get Live Feed to work right. Now my wife has been vindicated.
