I found a great site to pick up Sci Fi Fiction.
http://www.baen.com/library/
you can go download complete books in a variety of formats. They let you preview the first 9 chapters of whatever book you are interested in and if you want to buy a copy of the book you can get it for a very reasonable price.
This is definitely the future of publishing and my hat is off to Jim Baen for this inovative way to market/publish/sell books.
BTW, i love being able to read anywhere with my Axim. Day or night. I am amazed at the screen clarity and depth.