I bought the Unibrain FireWire WebCam for my Ti and love it. Clips nicely to the top of the LCD, It comes with ISPQ video conferencing software which normally runs around $30 or so. Has great video quality, 2 firewire ports , and most importantly works great under OS X. Do a search on dealmac.com, I've seen the cam listed around $80-$90, retail price is $130.