I'm an analog guy for personal work up until now. I do photography for the company internal magazine as a part of my job and used Nikon gear over the years there. The 2 cameras I've dealt with are an old D-40 with newer generation kit lens and more recently, a D-5100 and the kit lens for that. The old D-40 seems a suitable match for the lens capabilities but the D-5100 seems to be limited by the optics. Typical duty is not demanding at work and both units work okay for new employee portraits and general illustrations.... Sorry for the long-winded intro but wanted to briefly explain my background and uses to this point. I am now considering a d-5100 for general personal use as my first digital (I'm a somewhat serious darkroom rat in formats from 35mm to large format). The general kit lens focal range is probably adequate for the type of duty I would put it to but would wish for better optical performance. I've managed to confuse myself while weighing the alternatives. I would likely benefit with a slightly longer focal length for some sports pictures that I might find myself doing so would lean that direction for choices. What optic would best fill this need and make best use of the body I'm considering. I like using the body at work and just being familiar with it was part of my criteria in selecting it but also would be open to alternatives, too.