I want to use my isight cam instead of the built in on my iMac. I have looked at the manual for the cam but could not find answer. I want to use the isight versus the built in so I can roam around the room to include others. Like I do with my iPad2. Use Skype to video chat. TIA My set up Al Grappone (89) USN Ret 20" iMac OS X 10.5.8 2. 1 GHz ,PPCG5. 1GB DDFR2 SDram memory, Mail 3.6, iTunes9.2 iLife9 Quicken2007 16.0.0, Epson Perfection 2450 Photo Scanner, Canon iP5200 Photo Printer,Netgear Wireless-N router Al VOTE in November