Nikon D800E with AF-S Nikkor 17-55mm /f2.8 - or Canon 5D mkIII with EF16-35mm /f2.8 L?

Nikon D800E with AF-S Nikkor 17-55mm /f2.8 - or Canon 5D mkIII with EF16-35mm /f2.8 L?

Added (1). " First, are you aware that the D800E is the model without the anti-aliasing (aka low-pass) filter? "… Yes, I'm aware of that. I did read the reviews and the look at the test photos.

In photoshop: Unsharp mask filter: Amount 200%, Radius 0.3, Threshold 0 the results are non the less impressive

Both are excellent cameras. I would go for the 5d because i already have some canon lenses. But if you're starting fresh i'd recommend the nikon cuz i've heard they have better flash exposure, which is important.also, nikons have more options for you if you like to take hdr photos. 5 or 7 exposures i think compared to the 3 that canons can take.also, nikorr has a bigger selection of lenses. But tht doesn't really matter considering both companies have over 150 lenses.

don know about the lenses but the nikon body is much cheaper and has a higher megapixel count. So i'd say buy nikon.

Yes!
Either!
Both as good as each other.

First, are you aware that the D800E is the model without the anti-aliasing (aka low-pass) filter? Here is a review of the D800E:
http://www.shutterbug.com/content/first-test-report-nikon-d800e-lab-test-and-comments

Unless you intend to spend a lot of time correcting moire' and other aliasing artifacts that can result from the lack of the low-pass/anti-aliasing filter you might want to consider the D800 that does have the low-pass/anti-aliasing filter.

Other than that, its all but impossible to answer your question since we have no idea what you plan to shoot with either camera. The Nikon 17mm has an angle of view of 93"16' while the Canon 16mm has an angle of view of 96"43' so if maximizing your angle of view is your goal go with the Canon package. The Nikon 17-55mm of course gives you a more "normal" angle of view (it approximates the angle of view of your eyes) at 55mm while the Canon 16-35mm gives you a medium wide angle at 35mm. The Nikkor AF-S 16-35mm f4G ED VR would match the Canon 16-35mm f2.8L except for being 1 stop slower. Note, however, that the Canon 16-35mm doesn't have IS.

http://www.sweeting.org/mark/lenses/nikon.php
http://www.sweeting.org/mark/lenses/canon.php

Are you also aware that of the two, only the D800(E) shoots uncompressed video?

I guess the first thing to do is determine which camera fits into your already existing camera system.

Switching systems can become very expensive especially if you are using the system to make a living.