i was in a simular position as you almost 2 years ago now,
yes coilovers are the way to go, yes there ok for country roads and importantly you can lower the car by as much or as little as you want.
i went for a conservative 15mil drop on my NC and it looks almost as nice as the 30mil dropped cars but unlike them I drive over speed bumps!
i kept a fairly good record of what I did and posted it all in one thread
hope it is helpful
note the pictures were taken before I lowered it btw.
i will put some recent pics up soon, I just need to take some first!!