Nikon SLR Cameras

What format does Nikon DSLRs shoot videos in?

Pumpkin
Pumpkin

As I know Canon does MOV and MVI files(correct me if I'm wrong)
but in what format does Nikon shoot videos?
I find Canon video files a bit of a problem to edit because i) i don't have a decent video editing software;I'm using Windows Live Movie Maker which sucks ii) I kinda like Nikon now.
I'm switching from 550D to a Nikon dslr to shoot videos.
What Nikon DSLR do you recommend[for video]?(Apart from the D7000, D700, D5000 and D800).

Jim A
Jim A

Well the d3100 shoots in mpeg-4