VIP Maxima

what is spring rate, dampen, pillow ball mounts, camber plates ???
what does spring collar height do? (drop the car?) shock bumpstop height and shock rates?? yes clearly a

im purchasing D2 coilovers soon and I wanted to know what exactly these terms mean and what more i need to order besides the coilovers themselves.

btw if anyone is interested in these, here is the GD on them for $700 shipped.
http://forums.maxima.org/showthread.php?t=351960&page=1

thanks in advance
-Mike