Most MSU students bring a computer to school, and basically all students who live on campus have a computer and usually their own printer, as well. It's not that Montclair doesn't have computers or printers for students to use, but the labs are normally crowded. At midterm and final times, there can be a significant wait to use a computer or even get into a quick print lab. While it is nice to print out longer documents on the paper that tuition pays for, it's often much easier to do it on your own printer. Also, there is only one lab that is open 24 hours (four days a week) and only one lab that loans laptops for use outside of the lab. And, if you like having a computer in class, you will need your own.
The Office of Information Technology is pretty helpful. While they may not have the answers to all the questions, they are not buffoons who have no business near a computer. They aren't available to help all the time, but their hours are decent, and they are worth a call if you're stumped. The network at the school is fairly reliable. The whole campus has wireless access, which may be slow but works. The connection in the dorms is a little iffy still since the Wi-Fi is newest there, but if you have an Ethernet cable, you can still connect that way. In the end, if you have your laptop with you, you'll rarely get stuck without the Internet.