Playstation Move: Starter Pack (Includes Move Controller, Eye Camera + Demo Disc) http://www.thehut.com/games/games-accessories/playstation-move-starter-pack-includes-move-controller-eye-camera-demo-disc/10215868.html
£38.93 + Quidco + 10% off with walkers code
Already cheapest I can find online at £38.93.
The Playstation move takes motion-sensing gaming to the next level. True 1:1, sub-millimeter tracking puts gamers into the virtual world of the PS3 and allows them to interact with the environment as if the objects were in their own living room. The controller uses the PlayStation Eye Camera in conjunction with the light emitting "orb" atop the controller to calculate your position in three-dimensional space. As the orb can change colour, multiple controllers can be tracked simultaneously.