I thought about posting this in the Game Deals thread, but it's not really a game:
http://www.buy.com/prod/official-str...210674146.html
This is an awesome deal.
I'll be up front and say that the stick and buttons kind of suck on this. I bought mine on amazon a few weeks ago, and one of the buttons has like a 80% response rate.
However, what you're really buying here is a nicely made box that is super easy to modify.
You can get some quality parts here:
http://www.lizardlick.com/pages/joysticks.shtml