I've used Kings Springs many times before and never had any major problems with them. I wouldn't say they're the best obviously, but personally for the price paid they weren't that bad There are heaps others of course, eg. Whiteline, H&R, Eibach, Tein, D2, etc.

But whatever springs you'll get, always try to match your shockies and springs together for a better performance and more comfort ride. Then accompany them with a thicker rear sway bar and front strut brace for a stiffer and better handling

FYI - There was a recent discussion about a couple of euro suspension options: http://www.ozhonda.com/forum/showthread.php?t=65622