I found this link on Apple. You can put in any manufacturer and find what models work with a Mac with iMovie 11, it also has a link at the bottom that shows what works with iMovie 8 & 9.
http://help.apple.com/imovie/cameras/en/index.html?lang=en_US
http://help.apple.com/imovie/cameras/en/index.html?lang=en_US