For those of you who use an audio output other than your tv (ie surround sound) you may be better off waiting for the Mad Catz Component cables, instead of the Nintendo ones.
After opening mine this morning, i was surprised to find how little the audio leads split from the video leads. I am lucky that they just reach (and i mean JUST). Once i get my new cabinet, i am going to have to buy extensions.
this is what my cables look like when plugged in:
(im sure you guys are smart enough to pick out the Wii cables from the rest of them)