My question regards, what controllers will one be able to use with Street Fighter IV.

I already have a generic USB controller which works fine with a variety of games. However I was wondering if this kind of controller will work with Street Fighter IV. I am sure that the official 360 controller and its related fight stick type will work.

However, I am aware that some Games for Windows games only allowed the official 360 controller to work such as Gears of War.

Additionally the system requirements set out by the steam store page are puzzling me as it states they dont clarify on this fact.

I have already preordered the game and I was wondering if I will have to buy an official controller or addon for my wireless 360 controller or will my normal usb controller work just fine?

I hope that any old controller works as I see a lot of people on a variety of forums expressing their interest into purchasing a variety of 3rd party types, even imports from the east.

I would very much like to stick with my standard USB controller which has served me well.

I can only hope that standard types of controllers are supported. I can only think of the Xpadder tool which converts controller presses into keystrokes.