I have had my Wii since Nov. 19th 2006.
Take this information to heart, Grim, I'm sure it'll help you find a Wii in your area.
Aye, indeed it will! But seriously, its gonna be HARD to find, and yeah... you probably should have started looking a couple months ago. I used to work at GameStop, and the best thing to really do is call them in the morning around 11 and ask if they have any, or what day/time they usually get their shipments in, and call them back around the same day/time they get them, and you might be able to buy one, right as a new shipment comes in.
It was actually complete luck that I got my Wii on launch. I had planned to go to my nearby gamestop the morning they started the PRE-ORDERS, and I got to the store about an hour after they opened, and there was one pre-order left, and the only reason there was even that one, was because the guy that worked there decided he didnt want his, so I was able to pre-order mine.