i have koni 'yellow' adjustable coilovers with H&R sport springs.
they are a great combination and have done well on the road course and on the track. i also have neuspeed struts (front upper, rear under). But in general, the combination is great. Great ride too. on full race, you cant move the car up or down with your hands. (ie: no body roll)
..i can beat my friends integra around a corner/curve anyday