Hey. Current first year student here. Thought I'd comment on a couple of the questions in the thread.
As for dress, if they say business casual again this year, you are completely fine in that. I interviewed in a suit but it was about a 50/50 split with more of the finance folks in suits as they felt more. Student interviewers will be dressed that way. It is a really laid back process so you don't need to be formal, but of course you need to act professionally.
As for renting a car, parking isn't necessarily the easiest thing on campus for visitors and consider that to be an additional logistical hurdle to confront during your visit. We have a good sized visitor lot but we also get a lot of visitors so it may be full. If you do have a car you can also pay to park at the Bryan center (student union) a few blocks from Fuqua. Other options besides a taxi are a super shuttle or executive shuttle which are cheaper but take a bit longer to get here.
There is a duke app for iPhone that may help you explore campus a bit easier with a searchable campus map, and other info for your visit. Also Washington Duke is pretty much the only walkable hotel to Fuqua.
Being in town on Friday and attending Fuqua Friday is agreat chance to meet tons of students and experience the atmosphere. But is by no means a must.
By all means fire questions at me on the board or via private message. Happy to help anyway I can.
Posted from my mobile device