You should have the alignment checked after you do springs/struts.
As for camber, it refers to the angle from vertical that your tires sit. Generally they should sit slightly inward, but after lowering springs they usually sit more inward (negative on the diagram below). Really negatve camber tends to wear the inside of the tires more than the outside.
I just picked up a set of camber bolts and rear shims from Micro Image a couple weeks ago and will do my alignment/fix the camber with those items I bought.