Like DiverDoug1, I have a few different cases depending up what I am carrying and where I am going.
Some questions to think about:
1.) Are you traveling to places where it is more difficult to get the gear to? (Carry-on airplanes, puddle jumpers in there, etc.)
2.) Do you dive locally often so you can just load up gear in a car?
3.) Do you carry more or less equipment (or different size equipment) based on where you are going?
Some of the questions overlap. But I use a variety of Pelicans, Porter, Bags (ThinkTank and LowePro usually) and other items. With a 4/3 system and some small strobes or lights the items I grab will be different compared to a full dSLR rig. Sometimes, especially if going to places I have been to fairly often before and will get to again, it is nice just to use a small portable setup.
That all being said, I often use a Pelican 1510 because it works for carry-on in most places I go to, coupled with a laptop bag.
Just another point/thought, if you went with the text as written, then it reads to me as though you've provided a license to the BBC to use your footage on any program they like for ten years (as opposed to the license being confined to just The Program)... So they are now able to use the footage as many times as they wish, in as many programs, in whatever way without ending to chat to you again.
The language looks a bit loose there to me also a few reasons. Some may be custom/language differences from U.K. and U.S., but since you also see issues, probably not. It may also be that the email was more of a general bullet point concept, subject to a more formal document.