Audio Books:

• Audio Book Builder (Mac $9.95)
• Macsome Audiobook Converter (Mac $34.95)
• Zapptech iSpeak It [Text to Audio] (Mac $19.95)

Enhanced Audio Podcast (aka Audio-annotated Slide-show):

• GarageBand (Mac - part of iLife Suite - free on all new Macs)
• Profcast (Mac/Win $60 [Educational Disount as low as $30])
• ChapterToolMe (Mac - Free)
• Podcaster (Mac/Win - £30)

Video (Original Production)

• iMovie (Mac - part of iLife Suite - free on all new Macs)
• QuickTime Pro (Win/Mac - $30 [volume discounts available])
• PhotoToMovie (Mac/Win - $50)
• Photo Story (Win - Free)
• Pulp Motion 2.1 (Mac - $50)
• Movie Maker (Win Free)

Video (Re-purposing / Transcoding)

• Super converts .wmv to .mp4 (Win - Free)
• Jodix Free iPod Video Converter (Win - Free)
• QuickTime Pro (Win/Mac - $30 [volume discounts available])
• Flip4Mac WMV Component for QuickTime (Mac - $30)
  converts WMV files to anything QuickTime Supports
• Video Cleaner/Lite/Pro (Win $20 -80)
  converts WMV files to AVI which can then be used by QuickTime Pro
• MoviesForMyPod(Mac - $60)
• Handbrake (Mac - Free)
• MOVkit (Win - $45)
• Perian Component for QuickTime (Mac - Free)
  converts AVI, DIVX, FLV and many other file types to anything QuickTime Supports

Screencasting and Slidecasting

• ScreenFlow (MacOS X 10.5+ - $99)
• SnapzPro X (Mac - $30 Still Image Capture / $70 Video & Still Image Capture)
• Camtasia Studio (Win - $299)
• SnagIt (Win - $50)
• Jing (Mac/Win - Free)
• Cam Studio Win - Free

Soft Sub-titling

• Muxo Download | Discussion (Mac - Free)
  The only tool known to be able to install soft subtitle tracks into .m4v files.
• Jubler Java Subtitle Editor (Mac - Free)
• iSubtitle (Mac $19)
• D-Subtitler (Mac - Free)
  Extracts and converts DVD subtitles to usable (text) form
• Miyu Subtitle Editor (Mac - Free)

Album Art / Meta-tagging:

• iTunes (Win/Mac - Free)
• MetaX (Mac - Free)

Streaming Video (Reference Movie Required)

• QuickTime Pro (Win/Mac - $30 [volume discounts available])
• QuickTime Broadcaster (Mac - Free)
• iceCast (Mac/Win/Linux - $450)
• MakeRefMovie (Mac - Free)
  Tool for creating Refefence Movies
• QuickTime Streaming Server (Mac/Win/Linux - Free)

Chat/Conference Recording (iChat, Skype, Gizmo)

• iChat (iChat - native to MacOS X - Free)
  Record iChat AV, iChat Theatre and Screen Sharing Concurrently)
• Conference Recorder for iChat (Mac - $15)
• See "Audio Only" section above for recording other audio conferences (Skype, Gizmo, etc.), especially audio routing options.
• See "Screencasting" section above for recording other video conferences (Skype, Gizmo, Wimba, Elluminate etc.).