Paulll: Talked with John @ Inline today and asked the same question. He said for auto-x, go with the teins, but he said for saily driving and strip, the Koni/GC are perfect. He said it hard to fit slick under the Teins, and that unless your a skilled driver, or are very competative(race alot), the Teins aren't worth the xtra $.
Just his .02
I was thinking of Teins too. Check these out while your searching around:
C1 Group 'N'-Spec Coilover
http://www.exospeed.com/ Go to Suspension.