I just read this interview an hour or so ago. Thought about posting it. Didn't do it.
Anyway, it's interesting what he has to say. I don't know Firefly, but I like it that he seems so enthusiastic about Joss. It would be awesome to see him appear on Dollhouse.
I just started watching Castle yesterday and I'm already through the episodes so far. The show is good, and the two main characters really got some on-screen sparkage. The stories range from entertaining to compelling. But the main reason to watch for me is Nathan. He steals the show. Truly.