The University of Arizona, which does formal recruitment prior to classes starting, sends out a Greek Life booklet to all incomming freshmen and transfer studends. This is a combined IFC, NPC, and NPHC booklet.
this is a link to the rush/recruitment web page:
http://www.union.arizona.edu/csil/greek/rush/index.php
I believe that greek life also does presentations and takes signups during summer orientation.
They charge extra for moving into the dorm early, but that's all spelled out in the booklet.