I think I am with Jamie (wow!?): as far as I am concerned the D80 is as good as I need and yes prints fine up to A3+ and would certainly have to get a newer/faster computer for more than the 10MP and couldn't carry anything bigger on the sort of walking that is my 1st love....until D90 and D90+ come out anyway.

However for professionals, I suppose it is necessary to keep up, but improvements should be on how quickly the sensor can gobble the light rather than zillions of pixels?