In all honesty its not the cheapest place you can buy the mouse, but no where else seems to be offering the free Gaming Surface which is worth £12.99 on the GameShark website.
* 3200 DPI gaming-grade laser.
* 4 Custom DPI Settings – Use the Rocker Switch to toggle between your custom DPI settings.
* 3 Programmable Buttons – Combine your Programmable Buttons with 2 regular left and right mouse buttons and give yourself a total of 5 buttons to punish the competition. Assign your choice of key gaming actions to Programmable Buttons to create your own custom profiles.
* 3 Cyborg Modes – Toggle between three individual R.A.T. modes at the touch of a button. Change sensitivity or Programmable Button actions in an instant and gain immediate access to a mind-boggling 15 commands!
* Powerful ST Programming Software – Change your DPI sensitivity, create custom profiles for each game, and assign commands to your Programmable Buttons. Easy, quick and the power you need right on your desktop.