Now before you skip over this story, this definitely made me pause. If you buy a new PC from Dell.com, HP.com, Best Buy, or the Microsoft Store with a value of at least $699, Microsoft will give you a new 4GB Xbox 360. It looks like it's the slim model, which is a pretty good deal all things considered.
If you're in the market for a new computer, you might want to consider this. I have used Dell.com in the past with good results. This deal wouldn't make me go out and buy a new computer just for the Xbox, but if I was in the market I'd take advantage of this.
To read more, see this link: http://mashable.com/2011/05/19/microsoft-free-xbox/