I had a strange sense of deja vu about this thread...
http://www.greekchat.com/gcforums/sh...ad.php?t=86211
And clothing-wise, you've seen the guys at PSU, jeans, khakis, sweaters, polos, sweatshirts, they're all acceptable. My brother was greek in an ivy league and they dressed just like our guys did. Nice jeans or khakis and a button down shirt or polo will work anywhere, anytime.