I got it, runs fine on my machine, which I consider a mid level box sitting here.  My biggest gripe was that the game is a year old and it shows.  If this would have been released intot he PC market a year ago it would have made a much bigger splash.  That and the omition of a cooperative multiplayer mode  made it a bit of a disappointment to me since that was one of the main selling points for my friends and I back when it was in development before the Microsoft buy out.  All that being said I still found the game fun, and enjoyable.