Yes, somebody did the same/similar upgrade and was extremely satisfied. That member went with the rear shocks only. I'm following suit with the rear shocks as well. They are $264 shipped to your door from ProAmAuto. The rear of this car is just soft and spongy and I am not satisfied. How much are you paying for the front/rear shocks?
Here's his thread:
http://www.f30post.com/forums/showthread.php?t=897161