I have a Nikon D80 with the 18-135mm f/5.6 kit lens. I really want to expand my lens collection without spending a fortune but also don't want to sacrifice image quality with a poor lens. Ideally, I would love to have the Nikon DX 70-200mm f/2.8, but can not justify dropping $2,000 on a hobby. I would essentially like to have just three good quality lenses, a 70-200mm, 12-24mm and 24-120mm. Is it possible to find these without spending an arm and a leg? I have seen a few Nikon 55-200mm and 80-300mm (I believe both were f/5.6) for around $400-$800 from Best Buy and B&H Photo but am a little skeptical of the quality.