Related link: http://www.iconfactory.com/ip_home.asp
iPulse is a simple, attractive, somewhat useful application that highlights the benefits of an Operating System that combines UNIX with a high quality front end. The Mac OS X graphical indicator can sit on your desktop or just in your dock and give you visual feedback on CPU usage, Network activity, and Memory management. Once you get used to which segments represent which (not hard — CPU in the middle, Memory on top, Disk on the bottom), you’ll find yourself glancing over periodically to see what’s going on with your computer. Sure, other applications do the same thing, but this is well designed and elegant.