UK wildlife photographer Andy Rouse has written in his latest blog post that he is planning to take a Canon based system on his next photo shoot to the Masi Mara. Andy was one of the well known converts to Nikon following the 1D MkIII AF debacle.
http://www.andyrouse.co.uk/index.php?link=blog
http://www.andyrouse.co.uk/index.php?link=blog