I'll play the devil's advocate.
Don't confuse wanting to become a photojournalist with wanting to do large format, for whatever reason. There're only a handfull of journalists now who use large format; I can only think of David Burnett at the moment, and not all of his work is LF; it's a specialty tool that he uses, along with film cameras like Holgas, when the need arises.
You should think about what your photojournalism classes will require in the way of gear, and go with that; most likely, it will be a Canon dSLR.
As for doing LF for your own enjoyment, that's fine; but don't try to confuse this with photojournalism; you should be aware that the PJ profession is seriously being challenged for its very survival; many media corporations have down-sized their PJ staff, both international in scope and local outlets, too. This would be a tough career to begin; but follow your heart nontheless.
Okay, end of lecture.
Now, if you want to do LF, think about how you are going to print your images. Will you be scanning them, and printing digitally? There's a skillset that can only be acquired through much practice, and equipment requirements that are expensive for a student budget. Does your school permit you access to LF scanners and high-end printers?
OTOH, if you want to print optically, you need a darkroom setup with a 4x5 enlarger. These can be acquired for pennies on the dollar; mine was purchased off a newspaper advertisement for $125, including several lenses. Very inexpensive equipment outlay, but a considerable investment in the learning curve to be a good printer. Are you willing to commit the time to learn? Do you have the facilities to setup and maintain a LF darkroom?
You can also choose to contact print your 4x5 negatives; no need for an enlarger; you can get away with using a convertible darkroom space like a bathroom. And there's still good papers available, especially Lodima from Michael Smith's website for contact printing.
Of course, I'm talking B/W here. Are you interested in color work? That's a whole 'nother discussion.
Good luck with your decision, keep us posted.
~Joe