Digital book on CD ROM by Jerry Lodriguss. "A Guide to Astrophotography with Digital SLR Cameras.'
Perfect for beginning and advanced DSLR users. Covers equipment, capture techniques (ISO settings, subs, darks, flats, stacking and calibration, processing (includes common photoshop techniques), archiving etc. Final section has video tutorials.
More detail here
http://www.astropix.com/GADC/GADC.HTM
This edition is a couple of years old but little used.
$30 - includes postage within Australia.