The Logitech Proteus Spectrum gaming mouse is £51.99 at Maplin. Previous price from them was £69.99, these are usually around £60 - £65.
Logitech G502 Proteus Spectrum RGB Gaming Mouse
• Program your favourite commands and macros to each of the 11 programmable buttons
• DPI of up to 12,000 for the ultimate accuracy when gaming
• Logitech G Delta Zero optical sensor technology minimizes mouse acceleration and offers reliable targeting
• Five 3.6g weights are included to help customise the balance and weight to the way you like it
• Customise your mouse, with a choice of 16.8 million colours for the icon and DPI indicators
• Comfortable and customisable stylish gaming mouse - 132mm x 75mm x 40mm