As you know, i am no big fan of post processing work. In fact, the post processing done on the Nikon D90 is so well performed that i wonder if its necesssary in the first place.
But again, i cannot ignore the fact that there are just time when a well composed image is worth salvaging. And that's when Nikon Capture NX comes in handy. I just got the brochure recently and am running through the facts and figures as i write.
From my initial assessment, it certainly look more intuitive to use as compared to the Apple Aperture.