This machine has usb ports, for games like silent hunter, you can plug in a mouse and keyboard. And again, it is a full windows computer, which means that you can even plug in more exotic gear like a joystick or steering wheel.
However, I would not rush to dismiss the controller.
I use a Razer controller:
http://www.razerzone.com/store/razer...nament-edition
when I would like to lie down on my couch, enjoy some games on my TV, its a pretty damned good piece of gear. Works pretty well for quite a lot of games.