I have learned more about squeezing every last drop of quality out of my Nikon D1X by reading Thom Hogan's book
"The D1 Guide" than any other source. It has even more useful advice than this the Luminous Landscape DVDs, which I find invaluable.
He has completely rewritten the book and covers all the latest software and firmware upgrades and has inserted many new tips. The update only costs $9.95 and can be found at this website:
Link to Thom Hogan's BooksHighly recommended!
(I have no connection to Thom Hogan)
To see some of my latest attempts at bird photography:
Henry's Florida Birds