I guess the other way to look at it is if you get a D400 with better build, better AF and some better video settings (higher frame rate is full HD) how much longer would you wait for it - if it has the same sensor as the D7000?
Alex
I picked one up at my local camera shop this past weekend. My initial thought is it's too small for me to hold comfortably as a topside camera. It's built like my D200 just smaller. Maybe the MB11 (or whatever it is) battery pack would help. While playing around with live view for the first time, I find it focuses very slowly, even is decent light. That won't be an issue because I like looking through a viewfinder. Holding focus while shooting video in low light? Forget about it! It also records the sound of the lens focusing which sounds like a lot of clicks. Maybe I'll just say it's dolphin sonar...