Nikon D4

I am planning on a wildlife photography trip to South Africa (Kruger) & wanted to get some feedback on the use of a teleconverter, which i have never used. Any pros & cons & which one will be best suited ?

Hi everyone, Ok so here it goes (please bear with me ^_^). I have about 5000 euro's to spend on my next camera (for reference purposes the D4 costs 5000 Euro's here). I'm doubting which way to go. What would you do if you were a nature photographer (all subjects): Options (don't suggest any other camera's please :p):1. D800 + Nikon grip + 24-70mm (no D4 battery)2. Nikon D4Don't mind the prices of both.. plays no role here.I want to use it for the following (I'm a nature/wild life...

Hello!I am considering finally upgrading from my trusty D200 and am considering a D4. There is so much to consider. I currently have just 2 main questions.1) I understand that I can use my current DX lenses and will gain the crop factor and that the resolution will be less than the full resolution that the camera can produce, but are there any other "gotchas" with using my DX lenses. For example, will I still get a high fps or will it be limited?2) are there any other Gotchas that I should...