I got a d800e last year, and I had - and have - a Mamiya RZ. My problem: I don't have a decent printer yet, so I cannot really say much about how the d800e files look in print compared to my Mamiya. Judging from what I see on the screen, my impression is I should get about the same resolution. A 100% file also looks very impressive on the screen, but I haven't yet any interpolating software (I think that is what it's called), and I don't know its effect on the print quality - in fact, one reason I write this is I hope someone can give information on this, and I also would like to get more information about files vs scanned negatives.
Lukas