"Library Technology NOW" is a new site, covering 'Library technology news and product reviews written by library people for library people'. http://www.librarytechnologynow.org/
With content written by volunteers, the site is funded by The North Texas Regional Library System and the Texas Library Association. Spring 2005's theme includes Public Access Defenses, and links to 3rd party reviews of public access security software. Both might come in handy for that training room security issue you are thinking about.