Why settle for a one-trick pony app, a Mac utility that does only one thing, when you can have three at the same time, and each for the same low price of free?
It will graph the Mac’s CPU load and comes with configuration options. For example, you can set it to display kernal usage, user usage, and nice in a running timeline.
As your Mac uses more of the CPU, you can view the action in the Dock icon.
Not bad for free, right?
NetStatInDock displays network statistics. In the Dock icon.
This utility, too, is a running graph of the amount of traffic being sent to and from your Mac’s network connection. Traffic in. Traffic out. And, it, too, has a few options to modify the appearance.
In other words, it displays the Mac’s temperature. Configurations are nominal, but you’ll get a few useful options. When the Mac’s fan kicks in, glance at ThermoInDock and you’ll likely see the internal temperature rising.
This is particularly useful when running Flash in your browser. Flash is a known CPU hog and battery drain. All three apps are useful, colorful, dynamic and free. The only thing missing is an in Dock app that displays the remaining battery amount.