I don't know what it is about flying that turns your average decent person into a bag-slamming tool when it comes time to put a bag in an overhead bin. I have sat and watched people on flights throw other peoples bags around irriguardless of what is in them and have seen the flight attendants do the same. In fact, I landed at CES one year with a broken camera thanks to one of the flight attendants.
CaseCruzer has unveiled a new laptop and camera case that is sized to be a carry on that you will not have to worry about being knocked around called the PSC300. The case can fit DSLRs, lenses, and laptops inside and is ATA-approved for carry-on use.
The hard-sided case is made from injection-molded polypropylene copolymer resin and has molded in hinges. The case is waterproof to MIL-C-4150J standards and can survive severe impacts. The bag also has a pressure equalization valve and it has a 6-comaprtement design. The case measures 21.75" x 13.75" x 8.99" and weighs 13 pounds with foam. The bag can be ordered right now for $240.