Main problem with eibachs is they suck with stock/suck ass shocks. I dunno why, but I experienced this on my saturn before I upgraded to kyb gas shocks. When I got my good set of shocks I noticed at lot better responsiveness and the vehicle didn't feel "loose". But I will point out one thing. The pro-kit is basically a beginner's set of springs, if you going to auto-x then you are only getting the best that $200 will get ya(and it's a damn good $200, if I say so myself). If you actually upgraded to thier sportline series or better, you'd be speaking a lot differently. So overall Eibachs are better than 75% of the crap out there in the same price range.
Anywho, As with anytype of suspension upgrade with springs/shocks or coilover systems you WILL need an alignment check. I'm not sure about camber though, depends on how far out of alignment they throw your suspension off. Personally I didn't need anytype of camber kit with my saturn, just a re-alignment.