send audio from one Mac to another
FromAbyssoft:Soundfly is a very little utility that just sends the audio of one Mac to another, using built-in Mac OS X Tiger technologies, and Soundflower.
Expand over 30 formats: StuffIt, Zip, RAR, 7z, tar, open encrypted segmented or split files easily.
Speed Up (Defrag), Clean Up and Optimize Your Mac.
Powerful menu bar screenshot utility.