I am not sure that everyone is aware of Dr. Horrible's (that's Horrible with 2 r's ha ha ha) Sing Along Blog, but you should be. Pretty funny entertainment here folks. If you don't like it, I'm sorry that it's not your cup of tea.
www.drhorrible.com would be the stie. It currently has 3 acts, and they are working on the 4th. It was created by Joss Whedon (who did Buffy, Angel, and Serenity among other projects) during the writers strike with his brothers I think, and some of his little actor buddies. Happy watching!
-D