I can't decide.. Can anyone give some input on which one I should buy??
To me, it really depends on your budget.
The d80 is a superior camera in many ways. The viewfinder is way better to look through. The 2.5" lcd is great, and the menu's are better (minor thing). It has 11 area AF versus I think 5 for the d70, and finally, it is 10.2 MP versus 6.
Now, having said all that... the d70 is a great camera.
Imho, way more important than the body of the camera is the glass you put on it.
If I was on a fixed budget, say $1500, I would buy the d70 body, and leave as much money as I could for great lenses.
If money wasn't a huge issue, I would buy the d80. It is new technology, versus the d70 which came out in 2004.
For example,
I use the 18-200 VR lens. I love it. If I had a fixed budget I would buy the d70 and that lens, versus the d80 and a kit lens which is ok, but not great.
Luckily, business was good so I use the d80 with the 18-200 VR lens!
Hope that helps.
Cheers,
James