Classic Case

It's overpriced, but the Apple leather case works great for me. I can't deal with the "skin" cases, because they don't work with the docks I own (or the iPod Hi-Fi speaker).

I did just discover the Sena cases for the 160GB (www.senacases.com), and though I haven't seen one in the flesh, it looks like it might actually work in a dock and looks pretty good. At least it's half the price of Apple's leather case.