FYI, for anyone interested, there's a lot of Firefly action and fan created content. Many are of surprisingly excellent quality. Here's a summary of what I aware of (in addition to the main item in this thread).
An excellent book...
https://www.mobileread.com/forums/showthread.php?t=20200
Audio productions
http://sonic.libsyn.com/index.php?post_category=Firefly
http://www.talesfromtheverse.com/ (just a podcast reading of their episodes)
Extended scripts/written episodes for fan created seasons
http://www.firefly-tvs.com/
http://www.stillflying.net/index.php?page=seasons
And a couple of fan created shows seems to still be progressing very slowly...
http://thebellflower.com/
www.intotheblack.ca
And, of course, the movie from above...
http://browncoatsmovie.com/