I would recommend that you get the care plan book for 2nd semester, as that's when we had to write 2 care plans. I actually got 2 different ones and they were both helpful. Care plans are *very* confusing and any help you can get will be helpful. The APA book is helpful in writing papers, as you have to do them in APA format. I wasn't familiar with the APA format at all and used the Perdue OWL website but bought the book used from Amazon for this year, as I'm sure we'll be writing papers.
Our orientation last year was spent going over tons of information needed for first year, hearing the 2nd year officers speak, we heard from a group of nursing students who'd gone to South or Central America on a medical mission and we had the first lecture of class as well. Lunch was provided. 2nd year students were there to sell things, such as stethescopes and t-shirts. I know that our class officers have been working on fundraising items to sell at both orientations, so bring some money so you can buy somethings. The t-shirts that I got last year were really cute and I plan to buy at least one this year at our orientation.
The iClicker can be purchased at the bookstore. We used them once during Spring semester and I guess the instructors thought they were a good addition to the lecture as it made it more interactive. We could answer questions that they had up on the screen and tally the answers. I got mine and hope it's helpful.