When lowering a car it's best to use aftermarket struts with lowering springs because factory can not handle it correctly. 0-1.5" Koni, KYB, Tokico, Bilstein struts will all work fine, more than 1.5" Koni yellow or Bilstein HD is the way to go. There is always the option of true coilovers that include both struts & springs with adjustable ride height/dampening. Coilovers will be the most expensive option. Matched spring/strut kits are also nice, H&R Cup Kit, Koni, Neuspeed w/ Koni.
For normal springs H&R, Eibach, Neuspeed, Tein is the way to go.
quality suspension kits/coilovers:
http://www.modacar.com/products/Honda/Civic/MODACOI/
http://www.modacar.com/products/Honda/Civic/MODASUP/
www.tirerack.com