I just recently got into Wowza as a streaming solution at my University. Management of my growing pile of videos was becoming an increasing burden. I created my own Video Streaming Management System by coupling Wowza with the Drupal web content management system that now provides my users with an easy to use web interface for uploading videos, meta-tagging of videos, searching for videos on meta-data, usage analytics, video stream access control (using secure streaming module of FlowPlayer with the secure token feature of Wowza). Web discussions can be held for any particular video and LDAP authentication to the site (all leveraging Drupal with Wowza).
For those who are interested, I wrote up most of what I did at: http://www.ebremer.com/encore
I will finish the second half of the article soon. - E