For the whole sorority-life sort of presentation at Info night, they used that natasha bedingfield song "unwritten", which i like, but it's getting old/overplayed. We also heard some other song, it might have been country? I tried to Google it but couldn't the lyrics but something like these are the memories that will last you for the rest of your life, something about a box of photos from the attic. I don't remember the rest of it. Maybe the Michelle Branch song "You Get Me", which, surprisingly was the theme song from the sorority life tv show (I just found this out). Random, but there's a song called Poprocks & Coke by Green Day that I really like as well, but it might be a little rock-ier for your presentation.