NG ran an article several months ago that was shot all digital. The recent cover story was the first intentional digital front cover feature.
Rob Galbraith posted an interesting article on 'the shooting of the feature' on his site. It gives a lot of the details about how the job was done, what sorts of difficulties that the move from film to digital presented.
One thing that surprised me was that the photographer took
less shots with digital than he typically did with film.
That's just the opposite of my experience having switched from film to digital. Of course I used to have to pay for my film.
You might want to see if the article is still on line -
http://www.robgalbraith.com.
As an aside, NG isn't a physically large magazine. One could easily shoot for them with a 6 meg dSLR.