I have purchased a lot of good items from Rapid Repair. They are based out of Michigan. They have repair parts for decent prices and also sell "refurbished" iPods that are like new.
I bought a 240GB iPod Classic in black a couple of years ago and have been very happy with it. They use a new rear case and higher-capacity battery. I think they also have them in silver now:
http://www.rapidrepair.com/shop/1999-refurbished-240GB-ipod-classic.html
BTW, I don't work for Rapid Repair, I have just had good experience with them, and they answer the phone when you call, so that always makes me happy as a customer.