Sure, computers are fine for *serious* work but isn't the best thrill from finding a new game or an awesome screensaver? Marc Liyanage, always a great source for the latest OSX packages (PHP, MySQL, Apache, etc...) now has a whole page dedicated to customizing OS X including a link to the Solar Winds screensaver. My favorite setting is Cold Pricklies, but Cosmic Strings and Space Fur are a close second.