Will Swap My PS3 80GB For An Xbox 360 or Buy For £170 .

I have a 80gb ps3 in very good condition, with Fifa 12, and one controller and I am looking for a working xbox 360 with a wireless adaptor and preferably Fifa 12 or Modern Warfare 3. I would also put it up for £170 if you are willing to just buy the Playstation itself. Would prefer if collected from me, thank you.