I would go with these coilovers. They are Focuz brand, they have main and helper springs and they are only $220 at http://www.hmotorsports.com They also sell them on Ebay so you might even get them cheaper.
If you just want basic coilovers, there are many to choose from like Arospeed, Maxspeed, Matrix, APC, Skunk 2, Ground control, OBX, Tenzo
I would get KYB AGX shocks because there shorter than stock so you won't have as much as a problem with the perch. But you will have to grind it off if you really want to slam your car. You could get all 4 for $380 at http://www.groupbuycenter.com
