Maybe this is another stupid ? but is it possible to use a playstation style/type of controller to play on the pc. assuming it was usb. I have been playing Call of duty 4 online & I spend most of my time respawning. Maybe I just cant get my fingers around the keyboard fast enough, like I am lethargic. maybe my computor is to blame.I did reasonably well in singleplayer but the pros online are schoolin' me hardy. any help would be appreciated.