The following are tools we feel will increase you Zune experience. Download as many or as few as you need 
NOTE: Conversion Software may be found here:
http://www.zuneboards.com/forums/gen...softwares.html
Official Microsoft Tools:
Zune Media Collection Reset Tool - The Zune Media Collection Reset tool will reset the current state of your Zune media library. The tool will not affect any non-Zune related files on your system.
Zune Device Sync Diagnostic Tool - The Zune Device Sync Diagnostic Tool compiles information about your system configuration to help diagnose specific wired and wireless sync connection problems. Use only as instructed by Zune customer service.
Zune 2.3 Full Package - Includes all files needed in the installation of Zune 2.3
Getting Set-up:
Unzoone - Fully remove all traces of the Zune Software
Playlist Creator 3 - create playlists easily and quickly. The composition and creation of a playlist is done within seconds!
Metadata:
MP3Tag - Program for changing the ID3 Tags of audio files to Zune recognizable format
zMeta - Metadata editor designed by berdon at ZuneBoards. Tags audio as well as WMV videos.
ZuneBoards Originals:
Zune HD Patch - Allows you to view your Zune in Explorer
zAlternator - Allows you to Sync your Zune with any media player that accepts generic WPD's (MediaMonkey/WMP)
Audio Conversion:
Free Mp3 Wma Converter - Convert all your Mp3, Wma, Ogg, Aac, M4a, Ac3, Ape, Flac, Wav files