Well I just placed my order for a D800E at a camera shop here in Adelaide. Can't wait until mid April now! They are ordering 25x D800s and (now) 3 800Es. The other 800E (besides a display model) is going to a wildlife photographer they said.
I went for the 800E because I will be shooting a lot of landscapes as well as wildlife, so I'll either be blowing images up large for printing or cropping heavily around a subject in the distance so any extra sharpness and contrast will be useful. I want tack sharp images (yes I'll be upgrading my glass too!).
I'm also wondering if the lack of an anti-aliasing filter will make images look sharper at very high ISOs (ie. currently the graininess around hard edges makes them look a bit fuzzy). Time will tell. Maybe I could test drive one for Nikon!