New to the board

New to the place and I am looking for some info on some ways to get some more power out of my car!

02 honda civic ex
sohc :(
AEM CAI
Underdrive pully's
Front AEM Big break upgrade (want to to the rear upgrade, whats the best way to go???)
17 in Motegi
some kind of coil overs (that make real funny noises when you hit bumps and turn the wheel )

Whats next I just bought the car about 2 weeks ago and am not looking for the whole body kit thing and big coffy can exhaust just kind of a sleeper look that can really haul! thanks for the help and what not!