Welcome to MobileRead, fbochicchio!
If you like SF you should check out Baen's
Webscription store. Baen publishes all of their new material as e-books, no DRM, at
very reasonable prices. Plus, they have a fairly large "free library" where you can sample the authors' offerings before you buy, to see who's stories appeal to you, personally. And of course, since it's all on-line there's no problem with having to go to a large city or any such (something I appreciate these days, since I find myself in a rather smaller town than I've been used to).
And of course since you're talking e-books, there are a number of e-book stores that are available to you with similar "no big city" requirements that may have things you'll be interested in reading. Fictionwise.com, mobipocket.com, and such like that.