Features for anonymous users will remain as is.
Features for Users will include:
-Save your current/past schedules online
-Find fellow students taking the same class, be able to e-mail them
-Watch a class or class group and recieve an e-mail notification when an opening is available.
-Add friends to your friendlist, and view their schedules as they enter them.
Maybe/Maybe not in initial release:
-Preferred Instructors. You will have the ability to add instructors to your "preferred list" of your user account and when you search for schedules it will be another sorting option, to give preference to your preferred teachers. 
-Friends in class? If your friends added to your "friend list" have their schedules posted online, while searching for your classes you will be informed of who is in what of your schedules!
i.e. "Your friends: PandaMoOo is in this MAT215, KayCee is in this ENG104."
Please respond to my poll as it will help me decide how much time to spend on user accounts!