In the Dodge Cummins world, Bilstein was THE shock to have. I never owned a set, but they were very highly regarded on the forums. Based on what the reviews I saw in the Cummins forums, I will likely install a set on this truck when it gets to 25k.
As far as Bilsteins are concerned, you can get them in varying ride height, and even valving, if you contact them directly. And they do stand behind their warranty from what I have seen.