This Dr. Horrible's Sing-A-Long Blog screencap contains
soggiorno, salotto, camera anteriore, salone, sala, stanza di famiglia, camera familiare, tana, and den.
There might also be
salone, salotto, sala mattina, and stanza di mattina.
A German fan has translated the first couple minuti of Act I. It's pretty well done I think. All German fan on this spot o everyone who is interested should have a look ; )