AGX are good for the price. They dont warrant their shocks for rides lower than 2 inches. These are the cheapest.
Tokico Illuminas are good shocks. They control both rebound and bound. Overall, they are good all around shocks. They are average in price.
Koni Sport [yellows] are excellent shocks. They feel and perform great. The only thing that bothers people is that these are only rebound adjustable for Civics. Other than that, I havent heard anything bad about them. They also can lower or higher your car another 1/2 inch either way due to their adjustable perch levels. If you dont mind shelling out a few more bucks, Koni's are the way to go in my opinon.
Modacar.com has the Koni Yellows for $499
I have the Koni yellows, and I dont have any complaints yet.