NOOOO!!!! The 200mm f/2.0 is discontinued!!!!!

[Fast Glass]

Indeed, that pretty much was my opinion. That the 600 II and 1.4x is not bad. I think the 1200 and 1120 comparison is still not too bad. I'd give the nod to the 800 1.4 combo at that point but still not bad.

600 III, it just enough of sharpness and contrast loss that bugs me. But while I definitely heavily lean towards the 800, I would still give serious thought on the 600 II or III. There are still a bunch of improvements on those lenses. Both are still much better than the orginal 600mm IS anyway and photogs still took great pics with that lens.