The D7000 looks to be a great camera, but so was (is) the D90, and the D90 is now almost $600 cheaper than the D7000 (at least in Canada). For $600, you could pick up a nice lens, maybe even two.
However, if you are upgrading from a D80, I'm not sure how much difference going to the D90 would make (is it worth the upgrade?).
I bought a D90, but I wasn't upgrading from anything other than a point-and-shoot (although a good one in the Canon G7).
I would love to have got the D7000, but it wasn't in my budget this time.
Maybe you should keep the D80 (in what way is it limiting you?) and just buy some better lenses. The lenses will still be good when the D7000 drops in price in a few months (or maybe a year or two).