Just thought I would share this with you.
I just finished installing my suspension:
- KYB GR-2 replacement cartridges front;
- KYB GR-2 replacement struts rear;
- B+G lowering springs (1.6") drop all round.
(see Parts Database for more info. on B+G springs).

The lowering is excellent and narrows the gap between the tire and the wheel arch considerably.

The handling is superb - it doesn't move at all when going round corners, it sticks to the road like glue.
Also the ride is excellent as well - its not far off the orginal suspension as far as comfort is concerned.

BTW: While doing this installation, I found that the European ST comes with stabilizer (sway) bars as standard. >>

congrats man. fyi all st's come with sway bars. but they are very small. >>