I've recently been thinking about the 70-200 and it's just a piece of glass I've always wanted but haven't owned for whatever reason. I do own the 135L and am always blown away by the sharpness and quality of the images. It's obviously not as flexible as the zoom, but when I compare the image quality with the charts, the 70-200 almost appears even sharper than the 135L? Has anyone had both of these lenses and could offer up any input? I've been thinking of trading the 135L and the 100L Macro and picking up the 70-200, but don't want to regret it!
Ideally, I suppose I'd like to keep the 135L and 100L Macro, but it's very hard to justify for the price of all of these lenses anymore!

