iPod Case for iPod Classic 5.5

I was able to pick up a used 5.5 Classic in excellent condition. Could anyone recommend a decent case that is still available for the 5.5 80 GB? I'm not to picky but it's hard to tell what will fit.

Links for a website would be greatly appreciated.

Thanks. I have done that but I was under the impression that some where thicker and some were thinner. Is that not the case?