D800e + Sigma 50-500mm @ Bronx Zoo
I've been comparing the later version of this lens to the original EX that I purchased in 2001 and have to admit that chose the original.
The new has OS and better contrast but the sharpness of the EX beats it still.
On the subject of CCD vs CMOS... the differences are insignificant in comparison of post processing impact on the final picture..
However much fun it is to play with the toys (and yes, it is just too much fun!:)), post work would be a better time and effort spent to get a significantly better final result.