Another Update: Lots of visitors have been coming to Nimisis.com via the search engines so I've made my own little Wii stock checker.
Update: Even though I mentioned new stock notification services before as useful for getting your hands on a Wii, signing up now to their email list is too late. By the time you get an email they're all sold out. You're better off downloading URLy and checking the relevant Amazon page for significant changes (i.e. more than 60 individual changes) every couple of minutes.
Frankly, this should not be allowed. This site clearly says they've got Wii consoles in stock yet there is no purchase link! (In case they have actually updated the page now, a pic of what's there at the moment is below.)