Incinerator is a bit of fancy AppleScript that sets up two trash cans. The first is your normal trash where you drop everyday stuff. Nothing sensitive. Nothing fancy. The other is Incinerator, where you drop all of your secure data. This data is then processed through the Guttman method, and destroyed for all intents and purposes for the average user. It’s been licensed via GPL so the source is available. Open source for MacOSX.