Designed for simplicity and ease of use, SFX Machine RT offers quick and easy access to over 250 presets. Simply choose an effect category, click on a preset, tweak the sliders, and you’re done. Click the Random button for who knows what.
In addition to its unprecedented range of effects, SFX Machine RT can also be used as a “Swiss Army Knife” of audio utilities. If you’re new to SFX Machine, try the interactive SFX Machine simulator at http://www.sfxmachine.com/simulator/.
Youtube demo of SFX Machine Pro:
More info: KVR Audio forum
Free SFX Machine RT here