I have for sale an Ericsson GA628 mobile phone, which works on Vodafone and O2 (900Mhz GSM I think!) The phone is in good condition, with a few marks and scratches on the aerial. The battery lasts for about two days or so, and the phone holds an excellent signal. It comes complete with a battery, and is still is good working condition. It comes sim free, but I can supply a Vodafone sim for a bit extra if required.
I have a Paypal and a Nochex account for payment, or there's always the good old fashioned cheque or postal order! Leave a post/email me if you require any further info/etc.!