black iphone 3g 8gb with charger swaps or offers +

as titled i have a black iphone 3g up for sale/swaps/offers. the phone has a little scratching to the back one or two very little scratches to the front glass the only one thing that theres a bit of dust trapped on the screen so the phone could do with a service other than that its fully working and on the o2 network. thanks for looking.