One other thing, you'll probably want to compose for tv safe (in case it ever makes it on to dvd, say) but make sure that you protect for the full frame of the video image, as that's how it'll look viewed on the internet. Reallly use the underscan on the monitor that you'll be using on every shot to keep in mind how it'll show up on the internet. I recently did NOT do this on a rather run-n-gun music video shoot with an XL2 with the P+S mini35 adapter, and the shots that I used a Kamio ring-light (that attached directly to the cooke primes we were using) showed the kamio creeping slightly into the corners of the frame... not visible at all when viewed on a tv monitor (which is what the spot was intended for) but when posted on the intenet it was visible. That aside, I thought that the XL2, shot 16:9 24p with the 2nd generation P+S adapter and a set of cooke S4 primes was really some of the nicest looking video I've seen.
Kitao