Im working in game at the moment and the wiimotes are rarer than the consoles at the moment.
Google product search shows one that say they are in stock, but I cant vouch for the site as Ive never used them before:
Wii Official Remote : Nintendo Wii UK Video Game Product View : More Info Sold out now...
Inflated prices on ebay are always there as a last resort.
Edit: this doesnt look too pricey, if you're willing to risk importing...note the seller makes you responsible for shipping costs (about half the price) if you return it...
New Version Official Wii Remote Controller w Skin Cover on eBay, also, Nintendo Wii, Accessories, Video Games (end time 06-Dec-07 23:31:16 GMT)
Official Nintendo Wii Remote Controller + Free Skin on eBay, also, Nintendo GameCube, Accessories, Video Games (end time 07-Dec-07 05:40:30 GMT)