What's a guy (or gal) gotta do to have a little flair (without upgrading to Vista's big, honking sidebar)?
Enter Analog Clock. It's a teeny little skinnable, Windows tray clock replacement app that puts a round clock in your square toolbar.
Why would you do this? Besides whimsy, analog clocks are actually pretty useful for instant information at-a-glance. Just a peek, and you immediately know roughly what time it is.
The app is an NTP-enabled application, and will update your system clock time by synchronizing it with atomic clocks through the Internet. It also includes a skinnable quick calendar window, accessible by mousing over the Analog Clock.
Analog Clock is free to download and is compatible with Windows XP and 2000.