I have installed both Tokico & Steeda springs on my two cars & have to say I prefer the Steeda's over the Tokico's. I fully agree with 87TTopGT's description of the go-gart like handling & have to say that's what I like best about them. The ride is stiff but who cares, if I wanted plush I'd get a Cadi!
Far as what you need for the install, you should consider replacing your shocks & struts while you have everything disasembled.( not necesary though ) Also, dont forget new isolator's. I run them only on the top, but that's just me... Gives it more of an agressive stance. And that's also what the guy over at Steeda recomended when I bought the springs.