I have a little time before today's NDP shoot so I thought I'd open my bag for you to see what I usually pack for out video shoots.
Ryan is carrying the main camera, a Canon 5D MkII, and most of the video gear in his bag. I carry the audio bag, which includes all our wireless microphone sets (you see their little antennas sticking out on the left), a handheld and a shotgun mic, and audio cables.
Also in my backpack is my Sony Nex-5 with kit zoom and two prime lenses. It is used for some photography and as a second video camera (hence the mini-shotgun mic you see mounted on top of it).
If you look hard enough, you can also see the GoPro HD camera we use for action video shots. Like 1st-person views from a helicopter or a skydiver.
And last but not least, I always have sunblock. If you shoot as much as we do in the sun, you must always be protected. And drink lots of water.