Koni adjustabels are the wya to go. $800 is a lot of money. Bilsteins sports are awesome, but sicne you got a bit more money I would go with Koni's.
By the way, for $800 im sure you could ifnd and get hookups on Tein coilovers or maybe even bilstein PSS coilovers. Shop around or find some that are barely used and you could get some awesome coilovers for the same price.