Just upgraded from D200 to D600 , "WOW" Bloody Fantastic Camera. Waited so long for a D400. I did my homework sold my DX lenses, and I am really glad I made the jump. Interesting when the salesman told me a lot of people who bought the D800 had to upgrade their PC's because of File size. One guy actually bought his D800 back and decided on the D600. Food for thought I guess. Every one has different needs with their Photographic Equipment, but he was saying that a lot of amatuers have gone way out of their comfort zone,and the D600 would be all they would need in the FX world. Anyway I am happy with my purchase.