Yes, above you see a one of a kind "300" themed XBOX 360 console (well, one of twenty ever made). It is basically an elite, with a 300 paintjob, and is autographed by Frank Miller and Zach Snyder. It also comes with a matching HD DVD drive and the "300" HD DVD movie. You can't buy this, but you can enter to win it here. But, if the winner chooses, he'll probably sell it on e-bay, then there, you can pay a pretty penny. This is rare so go have a shot at winning it!
Also, more pictures of this beauty can be seen on the contest page that I have linked to above.