Hi BGY11, the D80 and the 18-135 is not bad. That lens should be fairly sharp through the focal length.
I know to get the max sharpness out of any lens and camera you have to make sure that they are focusing properly. Many times owners have lens and camera that is slightly out of calibration and they don't notice.
The D90 is a very nice camera give good picture quality and good low high iso noise.
For me every lens and body that I buy I do a focus check and make sure it focuses dead center of where I point it. If the lens need a minor micro adjustment(on some newer camera's) I do that.
If the body has to micro adjust the reference lens that I use that I know need no adjustment I will send in that body under warranty for calibration.
I just got a 7D on Monday and I had to drop it off the next day for calibration. A few of my lens that I tested on my other camera that needs no adjustment needed adjustment plus the focus was a little inconsistent at further distance.
Nikon has some very nice lens too like the 24-70mm F2.8 and the new 70-200 F2.8 VR II, but they cost $$.
Since photography is my new hobby I don't mind investing a little into the toys.
Thanks for the comment.
