I suggest to go with the 60D. This is a pretty nice camera and will keep you happy for some time to come. I would not recommend going for a XXXD, because those are rather too small and eventually you might feel the need to upgrade, so you would invest in another camera body. With the 60D this wish to upgrade won't come so soon. Especially combined with a 70-200 f4 the 60D makes for a good combination. A friend of mine uses this setup to take sports photos and he is quite happy with it.