I have been shooting with Canon for 25 years now and stuck with the 1DsII for the last decade, primarily because it still gets the job done. The combination of the 24-105L and a 100mm macro seems to cover everything I need and it's built like a tank but the weight and bulk are a pain at times. Recently my head has been turned by Sony and in particular the A7RII. I don't know if there are any updates planned in the very near future, but it looks like it could really be the camera for all occasions. It would be interesting to hear some feedback (especially from ex Canon users) on the pros and cons of working with the A7RII.