A thread on the Steam Users' Forums offers a RAGE tweak guide that explores what PC users can do to improve their experience with id's just-released first-person shooter by going under the hood and using console commands. These include commands for anisotropic filtering, turning off head bob and weapon sway, and to disable mouse smoothing. It seems any such changes must be entered manually every time the game is launched, however, as no one has yet discovered a way to make them stick. Thanks ^Drag0n^.