To be published November 29, 2008--just in time for Thanksgiving, Kwanzaa, Hanukkah, Christmas and every budding engineers birthday. :)
Each of the ten models in the book requires only one NXT retail kit. The Amazon link is
(NOTE: Amazon has the book listed as "NXT Idea Book Volume 2". However, the book's image on the link has the correct title. The publisher promises to correct this on Amazon as soon as possible).