yah id say the goldlines are a great deal, I got my eibachs off ebay for about 160 shipped so I didnt spend too much more but from what I hear the goldlines are exactly like the ibachs except the drop is about a half inch more(eibach kits drops different amounts in front and rear).
In the end it comes down to how much you wanna drop your car and what spring rate(stiffness) your going for. for me the eibach prokit was great, I think a 2in drop for me would be too much since most of the driveays near me in wahsington SUCK for lowered cars so I went with the Pro-kit.