I have the Fujuitsu ScanSnap in this video, but I've never tried to scan a book with it. So if you don't mind the dust and you're not afraid of power tools:
http://www.youtube.com/watch?v=-M95Ob4kIak
And the knife/cutter method:
http://www.youtube.com/watch?v=8tx2JmW_p4c
And cwith a guillotine cutter with a clamp:
http://www.youtube.com/watch?v=uP4NbFaYZVI