I really like the silicon rubber iPod Classic case from iFrogz. It adds a little bulk, but not much. Makes the 80 Classic just a tad thicker than the 5 generation iPod. Good protection, very easy slip on and off, and nowhere near the dust magnet I thought it would be, even in an extremely linty fleece jacket pocket.
The only head's up I would offer is that the optional Bandz have a tiny little headphone port. Any phone with an angled jack or a straight jack bigger than the stock iPod phones will not seat. I tried to enlarge mine with a paper hole punch, but wasn't very careful and cut the Bandz in half. But for $2 for the Bandz, give 'em a shot. They will protect the USB port from grit, dust and stuff. I'm probably going to order another set of Bandz and give them a second shot with the hole punch.
Tock