I got the Lowepro, found it at my local camera shop and they price matched B+H. Even the 200 isn't that huge. With my 70D facing down with either of the two lenses and the second lens next to it I still have just less than 1/2 of the main compartment free for other things. It doesn't stick out from my body too far and sits under my arm at a comfortable angle. The shoulder pad is really thick and seems to hold the weight well. Now we just have to try it with everything else we want to pack in it to make sure it works for what we need it for, but it is looking good so far.
I do really like the design and as usual Lowepro has thought of the little details, like you mention the magnetic or velcro to secure the main flap, the removable handle, and inside the little side pockets, etc. And the rain cover if things go badly.