Lclock
Lclock is a nice mix of eye-candy and functionality. This utility takes the clock style from Vista and brings it Windows XP. In addition to a nicer looking clock the utility adds a useful calendar- which is FAR better than right clicking on the clock and going to adjust date/time.
Also If you hover over the clock a pop with todays Day/Date info appears.
Lclock is skinable. Lclock also features alarms (which I have not yet tested). It also has a small memory footprint (356 K on my system)
You can download Lclock from http://www.neowin.net/forum/index.php?showtopic=157465