Microsoft's Xbox 360 was released late last year with a list price of $299 and $399 depending on the model you purchase. Sony's PlayStation 3 will be out later on this year or next year with a list price of $499 or $599 depending on the model. The Nintendo Wii (formerly known as the revolution) is expected to ship before the end of the year, and cost around $250.
I have seen very little real data or pictures on the Nintendo Wii, and its motion-sensor-controller. Now, CNet has a short video, showing the Wii and its controller in action at this year's E3.