Nikon D800 amazing DSLR, impressive resolution, good tool for tools for landscape, macro and studio photography, you can some action shoots too.Also great tool for videographers.
Main Features and Specifications:

1. Sensor: 36.3 MP FX, 4.8µ pixel size
2. Sensor Size: 35.9 x 24mm
3. Resolution: 7360 x 4912
4. DX Mode: 15.3 MP
5. DX Mode Resolution: 4800 x 3200
6. Native ISO Sensitivity: 100-6,400
7. Boost Low ISO Sensitivity: 50
8. Boost High ISO Sensitivity: 12,800-25,600
9. Processor: EXPEED 3
10. Metering System: 3D Color Matrix Meter III with face recognition
11. Dust Reduction: Yes
12. Weather Sealing/Protection: Yes
13. Body Build: Full Magnesium Alloy
14. White Balance: New White Balance System
15. Shutter: Up to 1/8000 and 30 sec exposure
16. Shutter testet: 200,000 cycles, self-diagnostic shutter
17. Camera Lag: 0.012 seconds
18. Storage: 1x CF slot and 1x SD slot
19. Viewfinder Coverage: 100%
20. Speed: 4 FPS, 6 FPS in DX mode with optional MB-D12 battery pack
21. Exposure Meter: 91,000 pixel RGB sensor
22. Built-in Flash: Yes, with Commander Mode, full CLS compatibility
23. Autofocus System: Advanced Multi-CAM 3500FX with 51 focus points and 15 cross-type sensors
24. AF Detection: Up to f/8 with 9 focus points (5 in the center, 2 on the left and right)
25. LCD Screen: 3.2 inch diagonal with 921,000 dots
26. Movie Modes: Full 1080p HD @ 30 fps max
27. Movie Exposure Control: Full
28. Movie Recording Limit: 30 minutes @ 30p, 20 minutes @ 24p
29. Movie Output: MOV, Compressed and Uncompressed
30. In-Camera HDR Capability: Yes
31. Two Live View Modes: One for photography and one for videography
32. GPS: Not built-in, requires GP-1 GPS unit
33. Battery Type: EN-EL15
34. Battery Life: 900 shots
35. USB Standard: 3.0
36. Weight: 890g - Nikon say it's 10% lighter then D700