Late to the party, I know,, but just in case you haven’t seen this yet, check out Dr. Horrible’s Sing-Along Blog. It’s a toe-tapping bit of Broadway-style uber-geekery from Joss Whedon, starring Neil Patrick Harris, Nathon Fillion from Firefly, and Felicia Day, from the gamer satire, .
Acts I and II are up now. Enjoy.