Disclaimer: I have a very soft spot for bright, white consumer electronics. From the PSX to the white DSi to those limited white original Xbox consoles, I think they look great. Which is why I think this new glossy white Xbox 360 S console looks great as well.
It's available as part of a Kinect Family Bundle which includes a 4GB console, white Kinect, white controller, two games (Kinect Sports and Kinect Adventures) and three months of Xbox Live. It'll cost you $300.
If you just like the controllers, they'll be available individually for $50 each. It'll be out in North America this week, with a European release "in the next few months".