Get in touch with your desktop.
The entire surface of Magic Trackpad is one large button, so you can click and double-click anywhere. Magic Trackpad also supports a full set of gestures, including two-finger scrolling, pinching to zoom, rotating with your fingertips, three-finger swiping, and activating Exposé or switching between applications with four fingers.
Buy at Amazon: $69 Apple's Magic Trackpad (free shipping for super savers).
Magic Track Pad image via apple.com