Congrats! I'm a current BSN student at UCF.
To answer some questions:
For the transfer student orientation- same as what was previously said, you go to a room and hear some speakers, and split out into colleges (ie college of nursing) where you are further subdivided into the program (ie basic BSN, pre-nursing etc), you go to a room and receive a copy of your degree audit and then you go get your student ID. You will be placed in a "filler" class by an adviser. You will not actually register for classes until literally the week before classes start and at the same time find out your clinical assignments at orientation. In the fall you will take Health Assessment, health assessment lab, essentials of nursing practice, essentials of nursing practice lab, essentials of nursing practice clinical, community health nursing, community health clinical and role of the professional nurse. I cannot really answer what your schedule will look like, just plan to have mon-fri in class/clinicals. I had class on mon from 11-4, tues 730-1130, wed 730-1 with clinical on thurs and fri. Tues were my labs, and it is different for everyone. You will have community clinicals for the first 6 weeks, and for most people they were on thurs and fri (some groups did have to go on tues too). Essentials clinicals are the second 6 weeks and those are on thurs and fri (from 630-330, depends on the instructor) and are in long term care.
How do you prepare? Well first off, I would say save some money because things are about to get expensive really fast! The textbook package you need is expensive, and then theres the ati package, uniforms, nurse lab...
I agree with everyone else, just enjoy your summer off! You're going to be busy for the next two years. Sure, you can review some A&P if you really think that's going to give you a "head start". Buy a good planner too, it's going to become your best friend :) First semester is all about getting adjusted and learning the basics.