I am looking at investing more time in photography I currently have a D7000 which to be honest about I'm not that impressed with it. It does have some issues in back-focus but to be fair Nikon says to take the machine in to them and I'm sure it can be fixed. Previous to that I've had a selection of manual focus SLR's with film and they have been great. The D80 also works well in the taking photo category. I am looking at buying a professional grade camera. Unfortunately for me I have already invested in a fair few Nikon lenses ranging from a 50mm 1.4, 14-24 f2.8 wide angle, 70-200 f2.8 VR2 zoom, 28-70 zoom, 70-300 zoom 16-85 zoom etc. The lenses are good and sharp as. I do a lot of band photography and low light stuff and I'm finding that I'm doing more and more sports and action shoots. I'm finding that the D7000 is okay but not quite there. I have read the marketing reviews and I'm ready to go the next step. I don't want a D800 because of the size and I want speed. If there are any of you who have the D4 I'm asking your opinions should I go with that or the D3S which I also believe is a very good camera. I think where I want to head with the equipment is to have equipment that gives me options to do different stuff quickly and not have to worry about the technical aspects of the photo so I can concentrate more on the composition and getting great results.
Any advise would be great.