Plan on a minimum of four hours just for researching, printing and tracking down books and articles, and ordering others by interlibrary loan. If you give yourself more time to complete your research, unexpected delays won't cause as much of a problem. Clear up any questions with your professor prior to beginning your research. Even though computers can speed up the process, they do not have your knowledge, intuition, and experience. It takes time to get the results you want.
Reference librarians are very familiar with the research process and with library resources.