Frankly, two systems is almost overload, but if you must, and you think the video is that important, I'd take the 5D and the Bronica or the 5D and the 1N. If not, then I'd just take the Bronica. Otherwise you'll be spending all your time switching between cameras and switching between still and video and never actually photograph or record a thing because you'll either miss the shot or you'll come back with a lot of really mediocre stuff because your head was in the other zone every time you lifted one kind of camera to your face. It was tough enough for me when I went to Argentina with the Contax G1 and just two lenses for color street shooting and the Canham 5x7 for black-and-white.