We've been running 32-35 depending on how stiff we want the ride. For everyday driving, we'll keep it at 32. If we know more enthusiastic driving is on the menu, then we up it. I've only autocrossed it once, but I believe I put the tire pressure up to near 40 all around for that.
I've noticed very slight uneven wear due to negative camber. We use to have the car REALLY low, but have raised it up a bit. Don't ask me how low it is, I have no idea.
http://members.aol.com/onesi2nv/ludetracks2.jpeg for a pic
