How many books are we talking about here?? If it's just a few then dollarscan is your best bet. However, if you have a bunch - or you like building-type hobbies, then it might be worth your time to build your own scanner using inexpensive cameras. You can get up to 700-ish pages per hour scanned
without damaging your book!!
Check out the
DIYBookscanner website. They have several different types of scanners people have built - from very basic to very industrial. They also have free software that cleans up your images and can save them in multiple formats. That doesn't mean you won't have some manual editing to do - but it certainly would not be MORE than you would have to do with a dollarscan product.
Cheers,