EDIT - FREE speakers offer finished.
This Typhoon Wireless Office Desktop XP which contains the woreless keyboard, and mouse is only £15 including delivery from Amazon. If you don't yet have a wireless desktop - you're way behind the times! They are so handy, I can even lie in bed and surf HotUKDeals! This is quite a basic set, but would be handy enough.
Details: Wireless freedom through dual channels digital radio technology, the Typhoon Wireless Office Desktop XP consist of a Keyboard with Multimedia, Microsoft Office and Internet Browser hot keys, a streamline one touch button Receiver, and a Optical mouse with 2 special button for Internet browsing. Ergonomically designed with wrist pad attached and the wireless mouse shaped to provide comfort during extended use.