Ustream Producer Pro
Ustream Producer no longer uses QuickTime components for video file playback and writing. New Blue Pro Titler Plug-in support (Mac OS X & Windows). UStream Producer Pro is the worst piece of software ever. There is no tech support and it's barely updated. Do not buy it.
From The Ustream Producer is a desktop application allowing broadcasters to stream in high quality, just like they would from Ustream's website. Bill Frisell Guitar Artistry on this page. Additional features include the ability to easily manage video and audio sources; browse, drag and drop audio and video files; start and stop recordings; pop-out a chat room or Social Stream; display your desktop via screencasting capability; update your status and syndicate to Twitter, Facebook, MySpace, and AIM; broadcast using Picture in Picture; create multiple transitions.