Suspension

Not the cheap way to go, but I would say get your hands on some bilstein HD shocks/struts, H&R Race springs with Urethane isolators. This will give your car an aggressive stance, reasonable ride quality(significantly better than the KYB Eibach combo), and still handle great in the turns. I will tell you that I have been through the eibach springs, H&R Sportlines, H&R Race springs, Tockico shocks struts, KYB shocks/struts, Bilstein Shocks struts, and almost every combination listed above.

I settled on coil overs in the end, but the best setup before that was the Bilstein H&R Race setup. This is just my opinion though. But I have driven the same car with all the listed parts.

To save a bit of cash up front, I would say just sway the springs to the H&R race springs, and see how that works for you. The eibachs are good springs, but without a shock/strut combo vavled for over 1.5" of drop it doesn't really give your shocks/struts much room to assist IMO. I think you will be much happier with a different spring, and can sell off your eibachs to offset the cost.