Regarding the questions about Wiis- perhaps putting up a sign would help.
Last week when I was helping my sister hunt one down, I had to ask several sales people, and they were quite willing to help. And then when my brother in law found one; it was by walking into a store and then asking- the Wiis were in the back and they were trying to qualify customers. ie- finding out if this was a personal purchase or if it was for re-sale.
And really- what kind of man considers December 20th "last minute" anyways. If it wasn't for shipping stuff across country I'd be starting my shopping on the 23rd.