This book (while a great start) is now so old it is available FREE. All over the net
http://archive.org/details/RichDadPoorDad. (look on the left for downloads)
http://www.4shared.com/office/7v-_NvKs/_ebook__Rich_Dad_Poor_Dad.html
http://www.changeagent101.com/lib/richdad.pdf
And...