Wii system accessories- what are must-have items?

[Keyser.]

Component cables do help. Some comparisons here: http://www.gamespot.com/features/6162297/p-2.html
http://wiinintendo.net/?p=1943

Here's a video of the difference but youtube quality makes it a little harder to tell: http://www.youtube.com/watch?v=6umnBY8Eq_k