By all means use the CD's that came with the books. If PRing is easier on the computer, do it. The CDs have the same information as in the text and sometimes, extra helps. Yes, PR the CDs.
By breaking up, I assume you mean by topics or chapters, either way it can't hurt. In fact, when you PR a multi-topic book, you are supposed to treat each chapter as a book.
Good Luck in your class,
Cooter
[This message has been edited by Cooter (edited July 26, 2003).]