Ford Racing, the blue ford springs for $150 from massive
http://www.massivespeedsystem.com/fo.../i-389403.aspx
Eibach pro-lines, there are some good deals out there if you look and wait, I paid $100 for a new in box set, about 1/2 lower than the SVT springs
(Parked side by side with an otherwise identical ZX3, the ford racing springs were a tiny bit lower it appeared)
SVT springs are nice, but don't lower it much.