stock springs better shocks?
 

anyone try this? I'm happy with the OE ride height and my car is a street car. Has someone tried running bilstein on OE springs?

Try looking around in the racing section C-street thread. That class isn't allowed to change springs to all competitive cars run exactly the kind of setup you're talking about.

For street use, I would go with the Bilsteins.
Incredible durability. Highly recommended for the random crap you can run into on a daily basis (especially if you have poor roads). If you want some adjust-ability for motorsports then the Koni would be my recommendation.