Answers:
I would go with the 5D Mark II if I already have EF lenses and I would like to do some movies with fast prime lenses. Also the 5D II is better for landscape due to higher resolution. However, if I was planning to do pro shooting on wedding or any other events, I would prefer the D700 due to better AF system and easier metering system.
Now let us read some specs. of Canon SLR EOS 5D Mark II and Nikon DSLR D700:
Canon SLR EOS 5D Mark II:
Price: $2,699.99
LCD: 3-inch/920,000 dots
Sensor: 21.1-megapixel CMOS
Shutter durability: 150,000 cycles
A/D conversion: 14 bit
Sensitivity range: ISO 50 - ISO 25,600
Autofocus: 15-pt AF 6 center AF assist points; 3 center f2.8 and wider
Viewfinder: 98% coverage magnification n/a interchangeable focusing screen
Continuous shooting frames best quality JPEG/full-size raw: 3.9fps unlimited/14 (with UDMA card)
Nikon DSLR D700:
Price: $2,995
LCD: 3-inch/920,000 dots
Sensor: 12.1-megapixel CMOS
Shutter durability: 150,000 cycles
A/D conversion: 14 bit
Sensitivity range: ISO 50 - ISO 25,600
Autofocus: 51-pt AF 15 cross-type f5.6 and wider
Viewfinder: 95% coverage 0.72x magnification fixed matte focusing screen
Continuous shooting frames best quality JPEG/full-size raw: 5 fps/8fps with optional battery grip 100/17
Finally, if you record some video using Canon SLR EOS 5D Mark II, now you can import EOS 5D Mark II video to Windows Movie Maker for editing after converting EOS 5D Mark II HD MOV video to AVI, WMV, or MPG using Video Converter or Canon EOS 5D Mark II video converter. Of course, you also can edit Canon EOS 5D Mark II video with EOS 5D Mark II MOV video editor
For Mac using just using Mac Video Converter.
