I needed a new controller and I wanted one with the Xbox layout. I saw this and it had some decent reviews.
To get it for £16 just click "7 new from 16.00" and select amazon w/ free delivery. It says that it ships in 1-3 months (!) but I ordered mine last Saturday and it shipped today!
No brainer for 16 pounds..
High-end wireless controller for top performance
Reverse analog sticks and glowing action buttons
Custom dual purpose USB Controller Adaptor/Receiver
LED player channel indicator lights around “Home" button can be switched on/off
SIXAXIS motion sensing equivalent to 1st party
Built-in rechargeable battery
Dual rumble motors provide an enhanced gaming experience
Custom textured grips with full body soft-touch surface feel
Custom designed R2 and L2 buttons for improved comfort and game play.