I'm considering replacing a D70 with a D7000. My biggest concern with the D70 is its dynamic range. How much increase in dynamic range should I expect with the D7000. I shoot in raw and use Capture NX2 to extract all I can out of my 70, but its still a stretch sometimes, especially outdoors in high contrast situations. I've also found that preset white balance seems to help, but of limited value in quickly changing situations (sunrise or sunset at the beach).
In addition to what Howard said, I'd add that the D7000 has better Auto WB than the D70. It also displays RGB histograms, which the D70 does not. These can help you get proper exposure under difficult lighting circumstances.
Welcome to Nikonians. While being a very good camera the D70 is far behind what the D7000 offers. I had the D70s and really liked it but wanted more resolution, better ISO, better remote possibilities, etc. The D7000 does require you to use better technique because of the increased resolution but once you understand that you'll really enjoy the extra benefits available.
Nobody should seek his own good, but the good of others. <><
I'll second all the comments so far. The difference between the cameras is dramatic, and dynamic range is a huge part of that.
With the D7000, I am "saving" shots that would have been either hopelessly blown out or hopelessly under-exposed with the D70. You will be stunned at how much detail is waiting in the white/black areas of your photographs.
As for the higher MP count, what that means to me is that I can make some crazy deep crops to pull good images out of otherwise mundane photos and still preserve enough detail for reasonable size prints. I routinely made 16"x20" prints with my D70, and they look fine. But the limitation is you need to be printing more or less the entire original image. With the D7000, even with heavy cropping, I'm making stunning looking 16"x20" prints.
I did like the way my D70s fit my hand better than the D7000 does. But I sometimes had to work very hard in post-processing to remove noise from D70s shots that is not even present at the same EV/ISO settings with the D7000.
I too made the switch about a little over a year ago from the d70 to the D7000 I couldnt be happier !! if you do the "math" the D7000 is 1 hundred times the D70 !!! Im sure you wont regret your decision.......... now all you have to do is decide how much to spend on some great glass !!!
BW- Big Wayner My motocross kid is faster than your A student !!