I've got a few old phones knocking around now, one is slightly damaged (n95 8gb with a crack on the case on the bottom, part peeling off) and an n95 in ok condition, and was wondering if there's any sites that claim to buy your old phones and have been proven genuine?

They probably are, but i just dont like the idea of sending 2 mobiles off without some sort of evidence they arent just taking your phones if that makes any sense?

Have you ever used eBay? I wouldn't advise starting there with a phone because they can attract some dodgy bidders but if you block people who haven't registered with a credit card, an auction there is likely to get more than any second hand phone dealer will give you.

You should certainly investigate dealers in your area before doing anything by post.