Seattle appears to have sold out in 15 minutes.  Now waiting on pins and needles for 10:00, when the Dallas manager gets in, and tickets will start to be sold.  And then I'll actually be able to get out of this chair and have a life again.  Wow!  In the meantime, here's an 
excellent article about the Firefly fanbase.
Also in the meantime, NOOOOOOO Theater: 
A Star Wars Fan's Tribute to the "Noooooooo!"  Laugh-out-loud hilarious.