Apple iPhone 4 - 16GB - White For Swap With BB Curve 9300 ?

I HAVE A IPHONE 4 16GB IN WHITE ON VODAFONE IN VERY GOOD CONDITION EXCEPT FOR THE LITTLE CRACK ON THE TOP LEFT AS YOU CAN SEE ON THE PIC. IT DOESNT AFFECT THE PHONE IN ANY WAY AND IS NOT REALLY MAJOR. COMES WITH THE BOX, CHARGER, USB CABLE AND USED HEADPHONES. I WILL ALSO GIVE A FREE CASE WITH IT. ITS ON VERSION 4.3.5. YOU CAN UPDATE TO THE LATEST VERSION IF YOU WANT WHICH WILL ENABLE YOU TO GET IMESSENGER, ICLOUD ETC. I AM LOOKING TO SWAP FOR A BLACKBERRY CURVE 9300 3G AND £200 CASH OR ANY OTHER OFFERS YOU HAVE. CASH, PHONES, BEATS BY DRE (WITH CASH) OR EVEN LAPTOPS. EMAIL ME YOUR OFFERS AND I WILL GET BACK TO YOU AS SOON AS POSSIBLE. PICK UP ONLY AND MEETING FACE TO FACE. THANK YOU FOR LOOKING