Well, I've only seen two types of springs.
Eibach and B&G
difference about $40-$30'ish between the two... I chose B&G since they drop about 1", Eibachs are 1.2" & 1.4" which isn't really that much more for more $$. Here in MO, we have potholes and speed bumps.. I wanted just that little bit, but not too much (low looks good, but you trade harshness and scrapes for the look)...
I'm thinking I can install myself, I'll need to buy a 24mm socket.. The 21mm's which holds the struts to the front suspension assembly seem to come off easy enough. I'm worried about the 24mm nut to take off the top of the strut, will that just spin? It looks really easy to DIY this, and I don't want to spend $$ I don't have for what appears to be easy installs....
I think the 1" drop will also keep the ride closer to OEM than really low.