As always, dpreviews.com has done in-depth camera review. And they just reviewed the new Nikon D3, the camera for the real professional. You can read the full review here, and before going further,you can fast-read its product highlight below:

Nikon D3 Key Features

* First ever Nikon DSLR with a Full-Frame (36 x 24 mm) sensor (dubbed the ‘FX’ format)
* 12.1 megapixel full-frame sensor (8.45µm pixel pitch)
* ISO 200 – 6400 (with boost up to ISO 25600)
* Also supports DX lenses, viewfinder automatically masks (5.1 megapixels with DX lens)
* 5:4 ratio crop mode (10 megapixels, up to 9 fps, viewfinder masked)
* 14-bit A/D conversion, 12 channel readout
* Nikon EXPEED image processor (Capture NX processing and NR algorithms, lower power)
* Super fast operation (power-up 12 ms, shutter lag 41 ms, black-out 74 ms)
* New Kevlar / carbon fibre composite shutter with 300,000 exposure durability
* New Multi-CAM3500FX Auto Focus sensor (51-point, 15 cross-type, more vertical coverage)
* Auto-focus tracking by color (using information from 1005-pixel AE sensor)
* Auto-focus calibration (fine-tuning) now available (fixed body or up to 20 separate lens settings)
* Scene Recognition System (uses AE sensor, AF sensor)
* Picture Control image parameter presets (replace Color Modes I, II and III)
* Custom image parameters now support brightness as well as contrast
* Nine frames per second continuous with auto-focus tracking
* Eleven frames per second continuous without auto-focus tracking
* Ten / eleven frames per second continuous in DX-crop mode (AF / no-AF)
* Dual Compact Flash card slots (overflow, back-up, RAW on 1 / JPEG on 2, copy)
* Compact Flash UDMA support
* 3.0″ 922,000 pixel LCD monitor
* Live View with either phase detect (mirror up/down) or contrast detect Auto Focus
* Virtual horizon indicates if camera is level (like an aircraft cockpit display)
* HDMI HD video output
* ‘Active D-Lighting’ (adjusts metering as well as applying D-Lighting curve)
* Detailed ‘Control Panel’ type display on LCD monitor, changes color in darkness
* Buttons sealed against moisture
* Dual battery charger as standard