I have the Koni Sports on my '99, they are sweet. I have the "Neuspeed version" or "SP3" as they are sometimes called. The difference is a slightly shorter shock body, and they have 5 perch grooves more closely spaced than the two grooves on the regular Koni sports, allowing more fine-tuning of your ride height.

I got mine a about 2-3 years ago from www.tornactive.com It looks like they have a new name or something, but they had the cheapest price back in the day, and they have them for $135 each right now, but doesn't specify if they are SP3, so I'm assuming it's the regular sports. I don't even know if they make the SP3 for your car, but if they do, I'd get those ones.

I got mine for $560 shipped, so $140 each shipped, and that was the best I could find then.

I've also seen them on www.tirerack.com for $138, I'd go with them over the previous site now that I see this price.

www.shox.com has Koni Sports for $582 shipped

http://www.gprparts.com/brands/neuspeed/shocks_koni.asp says they have the SP3's, but I'd make sure they fit your car, it just says 98 and newer.

There's some sites to get you started anyway