The All In Bundle from Audio Ease is a bundle of unique processors, useful for both audio and post production.
Altiverb, Speakerphone and Cabinet all utilize convolution processing, while the plug-ins found in the Nautilus and Rocket Science bundles are based on more traditional synthesis technologies.
Finally, Snapper is a highly useful utility for auditioning large audio-file data bases, and converting select files for various uses.
Please click on the links in the "What's in the Box" section to the right of the page for more detailed information about each component of this bundle. All In Bundle components are Mac OS X only.