Get computing with the Logitech M110 Silent Optical Mouse.
The M110 is as quiet as... well, a mouse. Thanks to its silent click feature you can get on with your work without causing a distraction for people around you. It's smooth, response and reliable as well as having an ambidextrous design so it's good to use with either hand.
Technical specifications for LOGITECH M110 Silent Optical Mouse
Mac OS X 10.5 or later