well if you have a 5gen Prelude like i do here is m suggestion:

For suspension:
if you want a smooth almost like stock ride then DO NOT get coilovers. I suggest either getting H&R Sport Springs which will give you 1.4 drop all around and the ride is just like stock ... in my opinion even better. The springs dont sag and they are very well made.
dont drive on stock shocks you will kill them. so spend a bit more and get after market shocks. top of the line is KONI YELLOW but if you dont want to spend top dollar then get Tokicos ILLUMINAS they are 5 way adjustable. You are better off getting the adjustable so you can mess with them soft to stiff if you want to go for a more stiffer one day and soft the next.
You will need some strut bars for front and rear to keep the car chasis stiffer....so get Neuspeed front and a generic rear. DONT get DC SPORTS those bars suck.
Then if you want to go slightly more then i would suggest the Sway bars front and rear. Suspension technique is good for the price.
This alone will make the car handle incredibly.

As far as a body kit... Get URATHANE since its unbrakable..and you can bend it. Fiberglass chips and cracks VERY VERY EASY ...so unless you want to financially support your local body shop or dont mind driving a messed up car with cracks and chips get FIBERGLASS. Urathane is much durable and easy to maintain. The only company that make urathane kits is Wings West ...not too much to choose from ... but they are good quality.
I hope that helped