hey i bought a 2008 focus style recently and im thinking of making it a lil more head turning..

basically all i have done is a few cheap small things like the parking lights, number plate lights, and the number plates themselves..
i recently got a set of HID's for the dips and am still waiting on the second set for the fogs lights..
but when i get the put in im thinking of dropping it.. but how much should i drop it? and should i drop it on springs or coilovers?
thanks in advance for any advice..