Yeah, a month ago, people were saying now would be the time. Now it's become March. March will become April, April will become May, May will become...??? It's difficult to predict when the occasion you and a lot of other people want will come about. It should have already happened, but for whatever reason, it isn't. If you have to have the Wii between now and that time (whenever it is) I'd go one of two routes:
It goes against the grain of CAG, but eBay is looking better. A quick look at the completed auctions page showed a lot of auctions for Wiis (in box, new, everything you'd get if you got it from the store) ending at $320-340 plus shipping ranging from $20-40. This is subject to change, since there'll be at least 10 more completed Wii auctions within the next 10 minutes, but you get the general idea of where prices are going.
If you can't wait in line, then you may have luck anticipating some of the smaller shipments at local stores. This, of course, depends on your work schedule, but if you can get some solid info (or if you happen to see a UPS/FedEx/DHL truck parked outside a place) then you can walk in and grab a Wii as soon as they hit the shelves.