Haha I'm a 0L so I have no clue.
I've always been pretty technologically inclined, so I'm anticipating being able to figure out any problems without any help from the school just as I did in UG when my school was still trying to get a handle on the influx of Macs.
Printing can sometimes be a pain in the ass if the school uses Novell or something similar. The easiest way around it is either get your own printer or email it to yourself (or a friend) who is on a network computer and print from there.
Since I don't know what the network situation is at SLU I can't be too sure. If you're worried about a Mac causing problems though, don't be. Computer stuff can always be figured out, if not by you then by someone else whose job it is to help you.