Wow coil overs? That's kinda aggressive an approach financially solely for 'looks'..
Op, if the goal is to DD your car slammed, coil overs may be the right way to go. Keep in mind you will need a bump steer kit, X2 ball joints, and possibly steering rack limiters to prevent scribing while turning. Also depending on on your wheel/tire combo rolling the fenders maybe necessary too.
If you do plan on going to the extreme I suggest contacting a suspension specialist to ensure you doing it the right way the first time.