Just thought I would update this post with my experience just changing out my fan clutch today.

Tools needed:

36mm slim fan clutch wrench (universal size for a number of different cars, including Ford, Chevy, Chrysler)
Water pump pulley holder (I got the one from Fastlane)
6 or 8mm (I forget which) allen wrench

Procedure is pretty straightforward, takes about 10 minutes once you figure it out:

1. Place pulley holder over the bolts on the pulley. The MB tool just sits over the bolt heads, no need to unscrew anything.
2. Unscrew the fan clutch bolt in a CLOCKWISE direction.
3. Swap the fan onto the new fan clutch.
4. Bolt on the clutch in a COUNTERCLOCKWISE direction.

That's it!