wall decorations comfortable bedding desk lamp coat hangers clock photos from home clothes computer snacks simple school supplies backpack
things to discuss with your roommate: fridge tv floor rug (consider this after you see your room for size)
http://www.ed.gov/pubs/Prepare/index.html http://www.collegeview.com/articles/CV/application/planning_ahead.html http://www.collegeview.com/prepare_for_college.html
I, myself am preparing for college. I took College courses in HS, so I'm not sure to consider it my first year.