I had ordered the Carried Away tote when I started my prereqs and it only took one day to realize that a bag that size was overkill. It's really big! If it were filled with books and a laptop it would be awful to carry. I ended up getting the Vera, which worked great for my needs at the time. I still use the Carried Away for traveling, and it works great for that purpose. I'm actually shopping for a backpack now, because my 15" laptop makes the Vera too heavy with my other stuff. I had tried a wheelie bag, but I felt really out of place and awkward using it (I was one of the only students with one).
If I were you, I would just get a good backpack now, with a laptop pocket. Every school is different of course, but you may find that you don't need to bring your texts to class, just a binder or notebook. Even in nursing school, we never need to bring the huge books with us, just the smaller texts sometimes, and our laptops. A lot of people like taking notes in the power points, or your school may do computerized testing. If you end up at a school that requires you to bring books, the backpack will still be good for clinicals and work later, or lighter load days.