Suspension Basics

Anyone who has the new super street check out Nelson Goncalves car in the back of the magazine? Well if ya did and ya know some stuff about suspension, maybe you could help me. I'm not to big on the "lowering the car so you can barely drive it" fashion. I am however taken by the looks of Nelson's car. He has 17" rims on the car as well as Koni shocks. When it comes to this department I am dumb founded and have no idea as to where I should start. I like the look and I want to stiffen the suspension... Anyone out there who can dumby it all up for me? it would be much appreciated.

Thanks