Useful Stuff by Ulti.Media:
Powerful Audio Cleanup per Podcasters and Interviewers
The professional version of PODcleaner, with indecision ("uhm") remover and multi-track syncing
A powerful tool to clean the audio track of your videos
Reduce the size of the Final Cut Pro X Libraries before archiving.
Tool for replacing old versions of files, pretty useful for After Effects renders or App development artworks
Fast and *free* audio normalizer