Probably one of the most rugged cases you can get is a Pelican case. These are watertight cases used by photographers to carry their very expensive equipment. It comes with pick-and-pluck foam squares that allows you to tailor the insides exactly to your equipment. But the latches are a little different than the typical aluminum case latch so you might not like them. But since you asked for a better quality case, Pelicans are an option...albeit an expensive option

http://www.pelican.com/cases/cases.html