If a book is out of copyright, chances are it’s here for free. Project Gutenberg is one of the great reasons for the Internet.
Only please let people not throw away their printouts (old boyfriend of mine used to bind entire photocopied books with some G-clamps, cardboard, glue and two bits of wood. I don’t remember him sewing them but according to this Instructable – http://www.instructables.com/id/E37671RK7XEQEC18BI/ – it’s the thing to do.). Because I really don’t think I can read from my handheld (and consequently I’m avidly awaiting the mainstreaming of e-books – or are they e-readers?)