Originally downloaded January 26, 2007. I've previously admitted I'm a sucker for cool sound effects tied to application and system events on my Mac. I currently use the wonderful, free (but not being maintained) MooSB preference pane for this, and before that I'd used Unsanity's Xounds. Too bad Sounds4Fun isn't free, but I em:would like my computer to yawn when it goes to sleep. 
The developer had built a similar OS9 utility about 10 years ago and has finally found time to update it for OS X. Like MooSB and Xounds, Sounds4Fun operates as a System Preference pane.
Version as tested: 1.0.1.
Update 9/16/12. This software is no longer available or in development.
