I apologize for resurrecting the thread, but this seemed like the most appropriate place to say this without starting a new one. Toys'R'Us is evidently getting a massive shipment of new Wiis for this Sunday, and each store is accepting up to fifty pre-orders starting now. So if you've been looking for a Wii, but haven't had any luck, this may be your best bet.
http://www.joystiq.com/2008/04/24/toys-r-us-getting-big-wii-shipment-sunday/
Good hunting.