Never fall for the idea that a good camera makes a good photographer......it just isn't so.

........Always looking to improve and keep up to date......It's like being a doctor.......:-)

Like me, you look at the keyboard when you type. I have gotten many surprises when I looked up at the screen, and the caps lock is one of them. :D

You have two choices: you can buy the camera that you want now, or you can wait and wait and wait until the price drops $50 - $100. What will you do about taking pictures in the meantime? Every camera I have ever bought has gotten cheaper some time after I bought it. If I kept waiting for the lowest price, I wouldn't have anything now.

Look for refurbs and check out eBay. I've done both - as well as bought new.

You know the price will drop the day after you buy one, so don't worry so much about that, and just buy one! The 5D3 is very much like a machine gun, it's very quick and responsive, don't even look at the 16Gb cards, or even the 32gb cards if you are shooting RAW at a event. I can Easley run out of CF card space so i have now invested in Hoodman 64Gb 145mb/s CF cards. AND these cards are fast. My 5D3 almost never stops shooting in RAW.
The first time I used this card I shoot over 500 photos of the sky, just waiting for my buffer to slow the camera down. It never slowed down.... Don't plan on shooting RAW and Jpeg, as it just slows the camera down. If you like to know where you have been then canons GPS works well, plotting a dot on a Google map, and it even shows which way the camera is pointing too. I could go on..

I am a D800 owner, and am extraordinarily happy with the camera.

The D800E will deliver slightly sharper images in the wider apertures, (less than f8). Moire will also be more pronounced on some subjects. At f8 or higher, diffraction limitation will act similarly to an AA filter resulting in virtually identical detail resolution.

If you shoot at < f8 frequently, and moire inducing objects are uncommon, then go for the E. If you feel uncomfortable about using a camera in which moire could on occasion be problematic stick with the D800. The small size of the pixels works in favour of the E, such that moire is less likely to be a factor unless fine threaded fabrics, far away screens and roof tile are common in your images.

As stated, I purchased the D800, and am exceedingly happy with it. I bought it because it was available in March when I purchased it. If the D800E were available I would likely have bought it instead, but truth be told the either are exceptional cameras, and both require the very best glass and camera holding technique to realise their full potential.

Attached cropped image was taken with D800 at f4 with 105mm micro-nikkor at 1/250 using a flash, using my tripod as a gunstock.