Dpreview just posted the in-depth review of Canon 5D Mark II:

This camera has 1080p 30fps video recording which is second to none.  The video function is usable in low light conditions with very good quality.  The high ISO performance is almost as good as Nikon D700/D3. The major problem with this camera is the average auto white balance and especially the slow continuous shooting speed.

Review from Imaging resource:

…being a camera that can deliver high quality over a wide range of lighting conditions and different ISO settings is what makes the Canon 5D Mark II such a compelling choice, and a clear Dave’s Picks.

Review from popphoto:

 And the vast amount of detail that goes along with 21.1MP, as well as the sophisticated image processing served up by its new DIGIC 4 engine, cannot be understated — it’s a wow! The low-light image quality is almost life-changing.

But the 5D Mark II’s old-fashioned AF system can’t keep up with the cutting-edge imaging power. Nor is the 3.9-fps burst rate state-of-the-art. 

Related Posts:

Canon 5D Mark II, best lenses and essential accessories

Best Canon Lenses

Canon EOS 5D Mark II preview and comparison with Nikon D700

Related posts:

1. Canon EOS 5D Mark II preview and comparison with Nikon D700
2. Canon 5D Mark II and Nikon D90 comparison, the full frame advantage
3. Should you upgrade to Canon 5D Mark II? What you need to know