Besides the things you've mentioned, there are also important body parameters, such as: dynamic range, max shutter speed, matrix size, etc.

I love this site that helped me sometime in choosing the new body:
http://snapsort.com/compare/Nikon_D7000-vs-Nikon_D80

This sample page shows the comparison between two bodies. Choose your DSLR's from this link: http://snapsort.com/compare

The most important thing there is that for each difference it gives a simple description about pros and cons