So I got Darksiders for PC awhile ago and decided it needs a controller to play, so I go on an adventure to find a good one that will work. 
 
Along my adventures I asked myself, how would I use my xbox controller on PC...long story short I need either a wireless adapter or a wired controller....$$$ I have to spend. 
Then I think what about my PS3! it has a USB cord that it charges with, and guess what not only does it work! It works amazing!! It has rumble, dual analog AND Sixaxis support!
 
Here is a link to a step by step instruction with links to download.  http://www.motioninjoy.com/wiki/en/install/latest  
The program requires constant internet connection to work, but don't fret there is a link at the bottom of the page to enable full offline mode.
  
You might be asking why it works amazing well let me tell you a story. I decided to test out the program and the first game that came to mind was Dirt 2. After installing it and everything I go into the game and discover there is no preset for my controller :( So I had to manually set all the buttons myself, but that still left me having to use the keyboard for menus and the flashback.  I wouldn't stand for this, so I did a little research. What I found was a very interesting and awesome tip. With this program you can EMULATE the PS3 controller to a Xbox 360 controller, as well as PS2,PS1 and even custom ones. So I went right ahead and did that, and you know what it worked FLAWLESSLY, Dirt 2 detected the "Xbox controller" and I was controlling everything with the controller, it even had rumble support!  
 
Hopefully this is useful to some people and maybe will save some people money. I figure if I had this problem someone else must too!