I'm selling an unlocked iPhone 4. It's 32 GB, black, with a brand new screen and home button. "Unlocked" means that you can put any sim card into it (including international ones) and get service (i.e. the phone isn't bound to a contract, it's fully paid for). I even have the box for it still. And if that doesn't get you, it has a complimentary charger & earphones.

It's going for $200.