I recently got a 20GB iPod, and don't need the case or dock that came with it, so here you go. I prefer a case with access to the buttons, and I prefer to use just the straight cable instead of the dock. They both work great and have been barely used.
Just a little note: The dock has these little gray tabs on either side of the connector port, and the tip of one is broken off. That's how I got it from Apple, and it does not affect performance in any way. The iPod still sits perfectly fine in the dock, and all charging/syncing functions work as normal.
Pics can be seen
here
These sell for $40 new from Apple, so I'll say $30 each, shipped to anywhere in the continental US. $55 shipped if you take both.
Email me at supahcoolx(at)mac.com or PM me if interested.
I have perfect feedback on eBay under the same supahcoolx.