I recorded that entire video on a 7D with the kit lens and a 70-300. Nothing more, nothing less. I'm pretty impressed with the video quality. It's definitely a nice touch even if you only use it occasionally. Having it there is nice.
One thing though is autofocus. The 5D AF is no where NEAR as nice and updated as the 7D's. The 7D really is a smartass about focus, it is simply awesome with it. I volunteered for a local wedding photographer as an assistant last summer. As I was helping set up I was playing with the 5D a little bit and it still felt pretty sluggish in terms of AF. I'd say it's about the same as the 10D I was shooting at the time. Not bad, just not near as good.
Also, zone AF is a simply AMAZING thing.