Ok, I've finally decided to get the Nikon D7000 but I'm a bit confused about lenses and am hoping to get some help. People talk about the importance of having good lenses (even over camera body). But what does that mean? 1) Is it a matter of lens quality or a matter of lens selection or both? 2) Lens quality: If I stick with Nikon, do I have to think about quality? Does Nikon make a bad lens? 3) Lens selection: If I'm shooting everthing from portrait to landscape to wildlife, can I go too far wrong with Nikon DX... 18-105mm f3.5 (to start with) 55-300mm f4.5 (add later) 40mm f2.8 or 35mm f1.8 (add later) Sorry, One last question... 4) I'm confused about Nikon lens model numbers such as f3.5-5.6G. I understand 3.5 is the maximum aperture, but what does the 5.6G refer to? Comments and feedback would be appreciated...thank you.