Personally (as someone who was brought up in the film era), I would hold off your spend at this stage until you have done some work on your college course, which is an excellent idea by the way, and go for the time being with something
second hand and cheap. More people should understand the basics before firing away and splashing large amounts of cash down on the first camera that "woos" them in the shop. Whilst digitial is great from the point of view of seeing the image instantly, the problem with it is that it doesn't teach you about "photography".
A good college course will explain the relationship between shutter speeds / aperture and ISO, and the combined effects there will have on things like noise (grain in the final image), freezing movement and depth of field (the amount of the depth of the image that appears in focus). Also you would need an understanding of how a camera "sees" an image from an exposure point of view and when to interveen with manual controls or exposure compensation. Then there's how to hold a camera and a lens properly, the effects different lenses have on perspective, flash photography and the inverse square law etc. etc.
As I said any camera will allow you to get a photo, but being a photographer and understanding what's going on, is the difference between getting a snap and a great photo. It really is a fascinating subject and you are always learning.
The reason I said hold of major spend now, is after you have grasped the above fundementals, this may well sway your decision as to which camera to purchase. You may decide not to bother with interchangeable lens cameras at all and prefer a "bridge" camera. You may want full manual control, or access to a hugh range of lenses and accessories (which is where Nikon and Canon score really highly), however you may want to build a more modest setup, in which case Pentax is also very good. You may want something small and light in which case the micro 4/3 systems from Olympus and Panasonic may well fit the bill. Basically what I am saying is that until you understand the basics of photography, you really are not in a position to estimate in which direction you want to go, and laying down £500 or £600 now on a camera for you to find out in a few months time it's not really what "YOU" want (not what everyone else wants or uses), you could be wasting your money.
This is one of the reasons why film and transparancy were so good. Because you only got 36 shots max on a roll and you couldn't see the photo before it was developed, one took much more care over composition, exposure etc. etc. and tried understand how the camera interpreted the scene so you would know when to let the camera get on with it or when to interveen.
Just my 2 cents worth.