should i grab a camera?
The practical difference is that a video camera is designed for video, and a dSLR is designed for photography. To make a dSLR like a video camera, you have to modify it to make its ergonomics more like a video camera. There are technical differences too, and if you don't know what those are, you shouldn't be spending money on a camera. Borrow one from the school, and learn with that. You probably already pay enough money for the privilege of attending a Graphic Design college, so take advantage of equipment loans whenever you can.