Yesterday I stopped in at AC Gears in NYC to pick up a case for my ATH-ESW9 - the AT-HPP5. It is really nicely made and has room for my IRiver too (as you can see). Now I don't need to worry about tossing my headphones into my backpack.
Here is a link to Audiocubes:
And here are some pictures I took. You can click to see the full pictures.