I spoke with Bing Pan and Jim Duran about this at the CofC Spring FTI, and I said i would send a link to Jim through a one-off email, but then I thought “I have a blog; I’ll just post it there and share it as many times as needed.” So, here it is: http://www.zotero.org/. I recommend playing the film.
I have only just started using Zotero, but I have friends who swear by it, and I intend to start using it, as Tyra Banks might say, fiercely, as I get an article project up and running in the next two weeks.