Which Component Cable? - Dealextreme ($5.78 including shipping)
ANY cable... really... i got my 3 footer for $6.81 AFTER shipping from ebay.
ANY component cable made for wii. just dont' get one of those cables that supports, wii, 360, and ps3 all the same time... pricey!
ANY wii component cable 3 to 6 feet long... the shorter, the better!