You will want to decide on what rims you are getting first. The rims will not lower the car (unless you get 15s with a low pro tire)...but you won't be doing that. I'm guessing you will be getting 17s or 18s.
I recommend the Hotchkis springs and the Eibach Pro Kit. The Hotchkis may be a little too low for your preference, but it will look pretty bad ass.