which tanabe springs do you have? the sustec super down precedeo's are 2" all around ... i was thinking about those too, if those are the one's u have, and the ride feel's like stock the i'll most likely get those.
Only custom shocks or a matched coil over set will handle a 2" drop. No off the shelf shocks will. 1.5" is the lowest you can go without abusing the shocks. Just ask the shock manufacturers of whatever shocks you are interested in if they can handle a 2" drop. And ask if the waranty on the shocks is still good if you car is dropped 2".