Apple iPhone 3GS swap !

I have an iPhone 3GS 8GB, currently locked to the Three network. It is in perfect condition and is now out of contract so no chance of it getting blocked. The screen has had one of those protectors on since day one so has 0 marks on it - the back is also in excellent condition. I no longer have the box for this, but I have the charger and a few cases. I am really only looking for a straight swap only - may be tempted to sell if the price is right. I am looking for a Nokia Lumia 800, a Blackberry bold in white or any other decent phone - I dont want a blackberry 8520 or 9300 so please do not ask. I am also interested in a Tablet - so please do get in touch. Will not ship to you - Face to face only - I am staying close to Archway at the moment, but will be in Greenwich from the 23rd August. Please contact me with your offers