I'm not sure if this has changed or not, but when I pledged in 1998 these were the fees:
pledge fee $55 (one time fee)
initiation fee $150 (one time fee - includes lifetime subscription to the Angelos)
chapter dues $47/mo
house note $150 or $15/mo for 10 months (once yearly)
live-in rent varied from $250-$375/mo
live-out rent varied from $100-$200/mo
security deposit $80 (one time fee - refundable upon graduation)
key deposit $5 (one time fee - refundable upon graduation)
my pin was about $56 I think? for the standard one
A lot of this will be different, given that this was 4 years ago, and at a different school, but it should give you a general idea. When you're rushing don't be shy about asking financial questions. This is a huge commitment and you want to make sure you have all the information first.
I hope to see you at rush in the spring! I'm the AA president here in Phoenix so I will definitely be there!
Lindsay