Limited budget zoom for FF
You can readily punch up your "lens" money by going dx. Of course, that leaves one with the the D7000 now versus D???? later question. The "D400" questions might be answered by the time the feeding frenzy for the D800 has died down. One would also have more time for others to have used the alternative lnses and pumped out more info on how good versus how much of a compromise they are.
Other than that, waiting sucks. I'm doing the same thing with my D200 and some older Maxxum lenses. Trying to decide the better economical upgrade path. Don't think I've reached the budget or bang for the buck point on either mount.