OSX Bytes
iFileX
FreeOS X file search that can look at hidden files and file contents.
Mac
iTweaX
FreeAlter hidden features in OS X.
Mac
iSonics
FreeConvert any audio format to all popular audio formats.
Mac
Photo Batcher
Trial versionBatch processing for photos.
Mac
iLock
Trial versionPassword protect any OS X application from unauthorized usage.
Mac
iTrash
Trial versionUninstall programs using the Levenshtein Distance algorithm to find related files.
Mac