With 1200 PNMs going thru recruitment at UofArizona, recs for every chapter are vital. Use the search function to find suggestions on how to obtain recs.
What to wear? Remember that it will be HOT during recruitment, for most rounds casual and cool is the recommended attire. Here's the UofA web page that talks about the rounds and what to wear. As usual with a competitive recruitment, you should consider dressing a notch above the suggestion.
http://arizonagreek.orgsync.com/org/pan/recruitment