Expression 2.0.0b1 (by Erik J. Barzeski)
Expression allows you to create, modify, extract, and otherwise toy with Sound Sets for both Outlook Express and Entourage.

Randomly Open iTunes 1.0 (by Erik J. Barzeski)
Randomly Open iTunes is an AppleScript that only launches files whose type is iTunes ("hook") so if you have a folder of MP3s for other applications, you'll have more work to do.

Open Copy of User Log 1.0 (by Erik J. Barzeski)
Open Copy of User Log is an AppleScript written for the AOL Instant Messenger's script folder.

File Type to iTunes 1.0 (by Erik J. Barzeski)
File Type to iTunes is a very simple AppleScript droplet that steps through a bunch of files and changes their file type and creator code to that of an iTunes MP3.

Generic iTunes Scripts 1.0 (by Erik J. Barzeski)
Generic iTunes Scripts is a collection of simple AppleScripts that can control Apple's freeware iTunes MP3 player.

Expression 2.0.0b1 (by Erik J. Barzeski)
Expression allows you to create, modify, extract, and otherwise toy with Sound Sets for both Outlook Express and Entourage.

Play Sound 1.6.4 (by Microcosm Software)
Play Sound provides a simple, no-fuss way to play sound files in classic Mac OS and Mac OS X.

Sound Shuffler 1.7 (by No U-Turn, Inc.)
Sick of the default alert sounds that came with your Mac? We are too.

MooSB Sound Packer 1.0 (by Nimatoad)
The MooSB Sound Packer program allows you to create your own Sound Packs without having to know anything about programming.

Sound Set Scripts 1.0 (by Craig Sylvern)
Sound Set Scripts are a pair of AppleScripts that choose a new Sound Set on startup and turn Sound Sets off.

Sound Builder 3.0.1 (by Hida)
Aren't you bored with ordinary sound?Do you want to decorate a desktop with a attractive sound?Do you want to improve your works with an unparalleled sound?From a beginner to a professional, Sound Builder becomes your power.

Speed Beep 2.0.7 (by Tiger Technologies)
If you've ever tried adding custom beep sounds to your Macintosh system, you've probably discovered two annoying things.

Sound for Growl 1.1 (by Karsten Kusche)
Sound for Growl lets you play a sound when you get notified of something by Growl.

TechSounds 5.0 (by Ecamm Network, LLC)
TechSounds seamlessly adds sound effects to your Palm OS PDA or smartphone.

MacOS Classic Sound Pack 1.4 (by Steven Jay Cohen)
Step-by-Step File Conversion for MacOS Classic Sounds
(will work for most sounds, but not all)

1.

Poisoned 0.519.1 (by The Poisoned Project)
Poisoned is a file sharing application for Mac OS X.

Empower Pro Phone 2.2.3 (by Empower Pro)
Empower Pro Phone enables you to have real-time voice communication so you can talk to friends, family and co-workers over the Internet directly from your Macintosh to their Macintosh.

POPFile Startup 1.0.1 (by Oak & Apple)
POPFile Startup will start the POPFile email proxy without any user interaction.

24U SimpleDialog Plug-In 2.7.1 (by 24U s.r.o.)
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EasyDonkey 1.0.2 (by DoktorKleanor)
EasyDonkey is a Cocoa application that takes care of all the configuration and launching tasks for MLdonkey.