The trusty D5100 and D7000 have held sway over Nikon's low-to-mid DSLR range for around 18 months now, but come December and there'll be a new option driving a wedge right between them. The D5200 will still be fulfill the role of a lightweight "advanced beginner" model and physically it's the spitting image of the D5100, but at the same time it brings some fundamental and distinctly D7000-like photographic improvements to try to excuse its £720 (body-only) recommended retail price. It offers a 39-point AF system for smarter focusi