Assume price is not a thing. EDIT: Or okay, assume <2k. I presently own a D80 and Nikon 18-135mm f/3.5-5.6G Nikkor 50mm f/1.4fD Nikkor 70-200mm f/2.8G These actually cover the range I like to shoot quite nicely, but I feel like I'm lacking quality in the sub-70mm range. I'm well aware that you should take some time to get used to your lenses, and I'm enjoying using them a lot. I don't feel like there's harm in adding a lens to your collection though. Any suggestions?