Here's an opportunity, I happen to have for sale a Pelican case, big bastard, it's air tight, dust tight and water tight, special valve so you can open it again after high altitude work.
They really are a great piece of gear for anyone who wants to look after their cameras or instruments.
I am putting it on Ebay soon but if any is interested give me a hoi, I am am looking at around the $250 mark.
I used to house 2-6x6 cameras, flash gear, 4 lenses and assorted accessories in it.
They are almost bullet proof.