I say the camber change is a symptom, not the cause. Something's changing your toe, and the tires scrubbing along the road is pulling your tires in at the bottom. With the car parked, have someone turn the wheel back and forth while looking at the drag link, pitman, idler, and whatnot.

Thanks all! So busy at work, haven't had a chance to do all these things, but will. I'll check back. Feel free to keep posting. By the way, I appreciate the steering box suggestion, too. I'll check that. Chris.