X-link to the DRM-free thread for the new Humble Bundle and some BVC writing specials:
Humble Book Bundle LEGO presented by No Starch Press contains a mix of DIY building books and illustrated artbooks, including at the $1 level a nifty mini-history of the Middle Ages in Britain with historic scenes recreated using LEGO®, which I've read from the library and can recommend.
Also, the Book View Café author republishing consortium is offering two 99 cent specials on writing books:
Brewing Fine Fiction an anthology of advice from many of their member authors, some of whom are quite prominent in the sf/fantasy genres, and
Ink Dance by Deborah J. Ross, containing anecdotes and advice from her 20+ years as a writer and editor published at DAW and elsewhere.