Actually, I find the lack of 100% viewfinder very annoying.
I don't do any post-processing, and I like to get my shots perfect in camera. Without being able to see exactly what's going to be in the final shot (at all sides) means I may get unwanted rubbish in the picture.
The way I work around this is, fix the focal range I want to use, scan the area I am shooting through the view finder, then when guess how much will be added (keeping in mind what I've seen when scanning) and then shoot.
Chances are, I still get unwated artifact in my picture... of course, I could crop these out but as I've said, I don't do pp .. so that's not much of an option.
Now, it the D700 had a 100% veiwfinder, I'd be a happy camel jumping all over the moon.