I have narrowed my search down to Ksport Kontrol Pro Coilovers, H&R Coilovers or DGR Coilovers. The Ksports and DGR stand out more due to the fact they have adjustable damper. I also like with the Ksports that you don't loose strut travel when adjusting.
I would like to keep a fairly smooth ride but would like to drop it quite a bit. I know this may be difficult since usually the lower you go the rougher ride you get.