Hi Guys,
If you like this sort of thing, Java Boutique has heaps of them along with tutorials etc (they even have an Applet Hall of Fame!)
http://javaboutique.internet.com/applets/. I've got to warn you guys that I've seen a lot of quirky problems with java applets in the past though. Each one is actually an individual downloaded program running on your computer. They sometimes suck up a lot of system resources and often slow your machine down. I've seen them lock up and/or crash some older systems too. As cool as they are, and I agree they look great, I'd really suggest using them sparingly though.
All the best,
E3
Further: (I just did this...) Just for the fun of it, open up your Task Manager and click on the Performance tab so you can see your CPU Usage graph. I run a P4 2.2 with a gig of ram, and with 3 browser windows open (to a normal page) my cpu runs 0-2%. As soon as I open a page with even 1 of the applets running on it my cpu jumps to almost 60% and spikes over 70% if I interact with the applet. Try it on your own computer and see what happens. I'm not trying to be a 'stick in the mud', and I know applets are fun, but most people don't realize just how heavily they hit their systems.