http://www.amazon.com/Big-Kahuna-Reef-Game-Download-PC/dp/B001K7HV3Q/ref=sr_1_1?ie=UTF8&s=videogames&qid=1237832493&sr=1-1

I haven't played this yet, but it looks relaxing with underwater scenes and apparently has an aquarium screen saver. Enjoy!!!

Thanks for posting! Unfortunately, I like computer games way too much!

Another website with a lot of free games is www.iwin.com . The games are interrupted by ads but they're free and fun, and the ads don't last too long.

Iwin has a lot of games that are just sixty minute trials which are nice so you can see if you like a game before you buy it, but there are tons of games that are completely free, too.