Grab yourself an official WaveBird controller on the cheap at amazon, offering an impressive saving of £17.01 you can pick one up for ONLY £17.98 (inc. P&P).
These things are selling on ebay at around £28.00, so get it while you can!!
Bit About The Controller:
Nintendo's WaveBird isn't the first wireless controller ever brought to market, but it's much better than what came before.
the Wavebird--with the same control features of the regular controller, but with wireless game play up to 30 feet. The Wavebird wireless controller comes complete with two AA batteries and Wireless Receiver.