As I've posted
before, I would advise everyone to stay away from the OpticBook. They have lamp issues. It's a known problem, and if you google with the right keywords you can find a number of reports. If you have basic tools and a little bit of time, I would advise building a camera-based scanning system. There's a forum for help/ideas/moral support:
http://www.diybookscanner.org. My system is at least an order of magnitude faster for scanning than the OpticBook.
Although, as anyone with any experience scanning should be able to tell you, the vast majority of time involved will be in proof-reading the OCRed text and not scanning.