TOKICO offers a perfect shock for a lowering spring. The TOKICO HPs are valved more aggressively than the OE shocks and are able to accomodate most lowering springs, including the Eibach Pro Kit, TEIN High Tech/S-Techs, etc.
Here is some pricing and info.
TOKICO HP Shocks: 06+ Honda Civic 2 and 4 DR!!!!