My own Wii has been dead for like six months. At first, it wouldn't even get past a black screen when I turned it on, but sometimes it would get to the "Press A to continue" screen, but THEN would go black. About 10% of the time, I could get to the menu. But games wouldn't work. At all. Pop that disk in, or even start a downloadable game, back to that good ol' black screen.
Since Zelda's a month away, I'm gonna have to send it in, but I'm not thrilled at the prospect of spending $80 to fix it.