I'm going to look at a D4 tomorrow as a higher frame rate camera than my D800e. What's brought this about? Well, I've started taking racehorse pictures for a few trainers around and about Lambourn, Berkshire, and more and more, I'm being asked for series photographs of a few of them galloping. The D800e is okay for a few frames and then I hit the buffer, whether it's jpeg(better) or raw(I mainly shoot raw but have been using jpeg to get a few more images together, not ideal) I've been looking at the D4, but I'm concerned with the 16mp over the D800e 36mp and this is a concern as I've had to have some images printed at A1 size, and with the D800e they still look absolutely stunning, but at 16mp? That's the question, I know how great the D4 is, but with increasing rumours of a possible D5 or D4x with almost certainly a higher megapixel sensor, do I wait or bite the bullet?