Why you don't want to use keyboard?
Every game that comes to PC version is more easier with keyboard controller, and also it has favourite feautres to quick access to your selected item, equipment, or magic, and added shortcut to open magick, skill, and inventory menu instantly.
But if you more comfortable with PS3 controller, that isn't so bad after all.
The DS3 tool functions the same for Skyrim as long as you set it to an Xbox controller emulator.
I use one to play on my PC and it works perfectly.
MotioninJoy | Playstation 3|Xbox 360|Dualshock 3|Sixaxis|Game|Driver|