Show CPU usage or/and RAM usage on tray icon or taskbar! Great soft btw!

What about Hard Disk Usage.

If you want to get cpu usage, you can throw taskmanager into your startup folder, and have it minimize to system tray, Ive  been doing that since windows xp :P. Also you may want to check out rainmeter.
(not saying he shouldnt concider the request, just giving you an alternative if your still watchin this

Process Explorer does this. Select the tray icons in the menu (Options -> Tray Icons) and let it start minimized to the tray (/t parameter).