"Fob is a free dock-based kitchen timer for Mac OS X by Leaky Puppy Software. It allows a user to specify possibly multiple timers to count down for a specified interval. When an alarm runs out of time, Fob will make itself conspicuous."

http://homepage.mac.com/tfinley/LeakyPuppy/fob.html

This looks great, thanks! I've been looking for something like this for awhile. I have a basic timer in my Google Homepage, but if I'm not in my web browser at the time the alarm goes off, it's useless...