For anyone connecting a Wii to a HD tv via scart (or composite) cable - you may be losing out on picture quality - using scart, the Wii interlaces the signal, then the tv de-interlaces it - and some HD tvs, especially cheaper brands, don't do it all that well, producing a poorer quality picture - so getting a cable like this means you can set the Wii to output using 480p (progressive, not interlaced) in the Wii settings, and you may get a much nicer picture.
I have a low-priced 32" HD TV, and there is a big improvement using this cable instead of scart - though some people, usually with the more expensive brands of HD TV, may not find so much of a difference to their picture quality.