http://www.nikonchat.com/buy-nikkor-af-s-lens/

What lens should I buy?
I have a Nikon D3100 digital SLR camera and lens I have now is an AF-S DX Zoom-Nikkor lens that comes with camera. I am in desperate need of a lens that gives me a range further. I do not know too much about the lens, "so I'm not sure that lens would be the next step? Any help would be greatly appreciated! Thanks! Yes, I have a 18-55 lens, sorry bout that
You could consider AF-S DX 18-200mm f3.5-5.6G ED VR II, which is $ 799.95 at B & H, and then never need to change lenses. Or, if you do not mind changing lenses AF-S DX VR 55-200mm f4-5.6G IF ED, which is $ 229.95 at B & H. B & H – http://www.bhphotovideo.com
Nikon AF-S NIKKOR 55-300mm f/4.5-5.6G ED VR Zoom Lens Unboxing