I have the Bilstein H1's front and rear. Very stilff ride, comparable to stock. Do a search for "Bilstein 1738" to find posts with reviews on them.
If I had to do it again, though, I'd probably go with the Rancho 9000 adjustables. I find that for most of my commuting, the ride is just TOO stiff. I drive the VX these days when I DON'T want a sporty ride... that's what my sportscar is for.