I have got a Black 16GB model which I bought at the end of October last year so it is only 8 months old. The screen is in perfect condition as I have had a protector on it and the back has one small mark and the usual small marks/scratches but these are hardly noticeable.
I have the original receipt from when this was bought and the warranty is still valid until 21 October 2009.
It will also come with the original box which includes charger etc that it came with and I will include the earphones that come with my new 3GS phone so they will be brand new. I will also include the new sim which comes with my 3GS which I think comes with 12 months free wifi and unlimited data.
I am looking for £300 inc RMSD and will send it out on Friday 19th June after I have got my new 3GS.