FTb-n said:
You didn't state what 'L' lenses you have. From your description of your interests, I would start with the EF 70-200 f2.8L IS II and the EF 24-70 f2.8L II. For wildlife and outdoor sports, add the new EF 100-400. Then go with the 5D3, maybe two of them. If money is available, the 1Dx would be a great alternative. Personally, I like shooting with two bodies and currently use two 5D3's. But, I would seriously consider one 5D3 and one 1Dx.
Of course, this is general advice. The above "kit" can cover a wide variety of subjects and venues.
Sorry, what I already have is in my signature.
I agree with all of you that said it... a FF camera is very important. I am very set on the EF 200 f/2L, or the EF 600 f/4L for this year. If I go with the EF 200 f/2 then the FF body will also be bought this year. I should have said that I will also be getting the EF 24-70mm f/2.8L because that will be an obvious hole to fill, but I'm not having any debate with myself on that one. It must be done. The EF 400mm f/2.8L IS ii will also be done in a couple of years.
The sticky point for me is between the 200 f/2L and the 600 f/4L
for this year. The EF 200mm f/2 will work for sports and be great for indoor sports. It will also work for birds with an extender attached. My purpose for the 600mm would be for birds, other wildlife and daylight outdoor sports.
Thanks for all your responses guys.