I too suffered the dreaded water pump leak. After talking to several dealers who stated the job would cost approx 1-1/2 hours labor plus parts, oil, and coolant, I decided to tackle the job my self. I studied the detailed instructions and began the RTV fix. Once I got into it, it went very smooth by following the instructions. I did the work on Sat. 2/16/08 and will add new coolant the next day to allow the RTV to cure. I will do a follow up to let you know if it was sucessful.
One thing the instructions missed, just prior to removing the "E" clip, there is a metal shim (washer) that must be removed which just slips off.
My fingers are crossed that this "fix" works.
Good work on the detailed instructions