SFX Machine RT comes with hundreds of presets, including conventional effects like choruses and flangers as well as a wide variety of unique effects and audio utilities. The plug-in allows automated parameter control via a simple "MIDI Learn" interface and provides a Randomize button for quick experimentation.
The software is available in Audio Unit and VST formats for Mac OS X.
There is an interactive SFX Machine Simulator at http://sfxmachine.com/simulator/ . This online Flash program provides a fun, interactive way to explore the capabilities of SFX Machine without having to download and install the demo,