I'm in need of new shocks and I am considering the Bilsteins as well. I just got a quote from Shox.com for $339 for the Bilsteins and $504 for the Konis.
I'm still considering the stock Ford replacements also. After all, they have lasted 129,000 miles and are just now getting too loose for my liking in regular mode. It is kind of hard to argue with shocks that last that long. I think you don't realize how bad your shocks are and then no matter what you put on there to replace them makes you say "Wow, what an improvement I love these new shocks". My experience with any other OEM shock is that they last about 20,000 miles and they are toast. The stock SC shock from Tokico is pretty hard to beat.
Bob