mangiaphoto

The Nikon D200 was announced on 1st November 2005, some three and a half years since Nikon revealed their first prosumer digital SLR, D100.

Key features:

10.2 megapixel DX Format CCD image sensor: A newly developed 10.2 effective megapixel DX Format CCD image sensor that captures images with edge-to-edge sharpness and incredible color at 3,872 x 2,592 pixels, yielding extraordinarily high-resolution images perfect for enlargements or creative cropping

Industry-leading image processing for exceptional color performance: Incorporates Nikon’s industry-leading advanced imaging processing engine of the D2x, which allows color-independent pre-conditioning prior to A/D conversion to work in symphony with advanced digital image processing algorithms to achieve fine color gradations with exceptionally smooth, consistent transitions

Large viewfinder with 0.94x magnification: The new eye-level optical viewfinder developed for the D200 features large magnification (0.94x) that helps ensure a clear view for precise composition, and built-in diopter adjustment that allows fine-tuning to your eyesight

Durable, Magnesium alloy (Mg) body: Nikon’s advanced technologies and mechanisms are housed within a rugged, lightweight magnesium alloy chassis and body ready for the most rigorous of assignments. Additional sealing for dust and moisture add to the D200’s strength.
5fps high-speed continuous shooting: Capture fast action and fleeting expressions with the ability to capture high-resolution images at a rapid 5 frames per second in continuous bursts of up to 22 NEF (RAW) or 37 JPEG (FINE - LARGE) shots**

Fast SLR response where it counts: Instant power-up in just 0.15 seconds, a shutter release time lag of a mere 50 milliseconds, and a shortened viewfinder blackout time of just 105 milliseconds makes the D200 ready to respond to any photographic situation

New, 11-area Multi-CAM AF System with 7 Area Wide AF: The new Multi-CAM 1000 AF Sensor Module offers an 11-area AF that ensures consistently fast and precise focus lock under varying shooting conditions. The 7-wide area AF system, offers broad coverage suited for moving subjects enabling greater compositional freedom

Large 2.5-inch LCD monitor with wide angle viewing to 170 degrees: A high-resolution LCD monitor provides ultra-wide, 170 degree viewing in all directions. Assisting with accurate sharpness assessment, images can be previewed at up to 400% magnification

New EN-EL3e Rechargeable battery with Fuel gauge function: The high-energy EN-EL3e rechargeable lithium-ion battery lets you capture up to 1,800 shots per charge featuring an accurate real-time Fuel gauge system that displays the percentage of remaining charge, number of shots since last charge and overall status of battery service life.

Wireless Transmitter WT-3: The optional Wireless Transmitter WT-3 provides wireless functionality with IEEE 802.11b/g technology; it enables cable-free image transfer to a compatible computer, with the added safety and versatility of wide-ranging network and security protocols (available Fall 2006)

You can read bout this camera on many other sites. I recommend dpreview.
It would be fair to describe the D200 as a ‘compact D2X’, while some features have been removed to preserve the D2X’s uniqueness you would be hard pressed to find a situation (other than high-speed crop continuous shooting) where the D200 couldn’t stand up to its bigger brother. more on dpreview.com