/me brushes off his surge protecting power board of +5 awesomeness (it also came with a lifetime warranty to a value of ~$25,000 if its awesomeness should fail for whatever reason).
In all likelihood you have fried something; not being able to get the hardware commercially you are limited to attempting to isolate and repair the problem by buying another broken wii and creating a WiiBorg or sending it to Nintendo to fix, though I don't know whether they offer the service outside of warranty.
07/03/2008
Zack & Wiki: Quest For Barbaros' Treasure
The secret bunker that has been converted into a Nunnery because 'we knowses; Magickstar, we knowses'.