Has anyone taken a good look at them? I only found one review at a Mac fansite, and the reviewer didn't hook it up to a computer. I know rear speakers would be better, but I can't wall-mount where I am, and the dog would nock over speaker stands without even trying. Not to mention he'd probably dig a the wires and shred them. Does the GT5051 work at all? If they don't, I may as well buy the Zalman headphones. One or two sources I'm too lazy to look up right now say they're pretty decent.