I've just discovered this recently to use a ps3 sixaxis remote on a pc... i fooled around with the program tweaking the controls so that its perfect for amnesia. One of the coolest features is the leaning... we all know that ps3 remotes have motion sensors built into it so when u tilt it to the right thats the way your character leans. same with the left. rotating objects is much much easier now and same with leaning. all the other controls is what you would expect on any controller..... the only downfall is.......oh wait....there isn't one cause its perfect!!!!
if you want this look at these videos:
http://www.youtube.com/watch?v=33WA-qsm2eI (shows how to connect remote).
http://www.youtube.com/watch?v=LiSIHYuF31Y (shows how to set controls...jump to the 4 min mark).