I think this is one of the best storage ideas I've ever seen. My only regret is that I don't have a garage.
It's especially clever because it's a way of reclaiming storage area you didn't even know you had - on the ceiling. And if you're especially handy (or you can enlist the help of someone especially handy), you can knock this one out in a weekend. All you do is create the flanges, from plywood and 2x4s, and then screw them into the ceiling (being especially careful to screw into the joists). Slide the storage bins into the tracks you've created and then bask in the glow of your newly decluttered garage.