In case Johnic isn't around anymore, I did my masters at UND so I'll chime in.
I grew up in the upper Midwest, so the cold wasn't a huge adjustment for me. The University has shuttles that run from one end of campus to the other, and most buildings are connected to their neighbors by tunnels, either above or below ground. The wind is really what gets you, though. Grand Forks is one of the windiest places in the country, which isn't fun during the winter. If your car's engine is old, you might have a bit of trouble getting it to start on very cold mornings. Your apartment may have heaters/hookups for them. My car is a 2010, and I never had any issues.
Midcontinent (Midco) is the cable/internet provider there. I never had an issue with the internet, but the cable would go out every once in a while when it gets windy.