Thanks - unless I'm missing something on that website, I'm looking at the cargo boxes themselves, not the racks. I'm looking at something that will bolt on to the factory rack that I can throw some luggage, a baby's playpen and other things in so my Golden Retriever can ride in the back.
I'm looking at taking a cross country trip this summer (one of a few in the next few years most likely), so it needs to be sturdy, waterproof and durable. I know it'll hurt the gas mileage some, so I'll go as low profile as I can.