I have Nikon D4 and D800e bodies with practically all lenses form 14 to 400mm, but I travel with Fujifilm X-Pro1 and X100s cameras. With the X-Pro1 I have 14, 35 and 55-200 mm Fujinon lenses, X100s has a fixed 23mm lens (these correspond to 21-300mm on a FF camera). The picture quality equals D4/Canon 5DII, but naturally these are not sports or action cameras. 10-12 page magazine articles have been printed from pictures I have taken with these cameras (Jerusalem, Burma, Petra, Tibet coming shortly). Using these cameras makes interaction easier with the locals, X-Pro1 is quiet, X100s is absolutely noiseless and both look old-fashioned and harmless.
My Nikon bag weighs 12 kg, Fujinon travel set is 2.5 kg. I have even travelled (Israel & Jordan) with everything (meaning photo gear, clothes, toiletries etc) packed into a 24 liter daypack, 7 kg total.
