But since that camera dosen't have an auto focus motor in the body, you are stuck buying lenes that have the motor built into it... and that = big $$$. For the price of some of those lenes, you are better off selling what you have and start new with a more middle grade camera body.
This is neither good, nor totally accurate advice IMO
↑ ↑ ↑ ↑ ↑ ↑ ↑ ↑.
Most of Nikon's lenses have a focus motor in the lens, because the in-the-lens motor focuses faster, and more accurately than the one that's in the camera body.
Here's another fact. If you buy one of those "more middle grade camera bodies" that does have a focus motor in it. IT DOESN'T GET USED IF THE LENS HAS A MOTOR OF IT'S OWN.
The D40 is a good camera to start with and which other lenses you might want to get depend on what you take pictures of and your budget.
Lenses are a more worthwhile investment because they don't depreciate or get replaced as often as camera bodies do.
A few choices for books would be;
The 3 book series on digital photography by Scott Kelby. Buy them 1 at a time or you can get the set:
[ame=http://www.amazon.com/Scott-Kelbys-Digital-Photography-Volumes/dp/0321678737/ref=sr_1_4?ie=UTF8&s=books&qid=1274134887&sr=8-4]Amazon.com: Scott Kelby's Digital Photography Boxed Set, Volumes 1, 2, and 3 (9780321678737): Scott Kelby: Books[/ame]
Bryan Peterson has some good books:
[ame=http://www.amazon.com/Understanding-Exposure-Photographs-Digital-Updated/dp/0817463003/ref=sr_1_3?ie=UTF8&s=books&qid=1274134974&sr=1-3]Amazon.com: Understanding Exposure: How to Shoot Great Photographs with a Film or Digital Camera (Updated Edition)…[/ame]
[ame=http://www.amazon.com/Learning-See-Creatively-Composition-Photography/dp/0817441816/ref=sr_1_4?ie=UTF8&s=books&qid=1274134974&sr=1-4]Amazon.com: Learning to See Creatively: Design, Color & Composition in Photography (Updated Edition) (9780817441814):…[/ame]
[ame=http://www.amazon.com/Beyond-Portraiture-Creative-People-Photography/dp/0817453911/ref=sr_1_7?ie=UTF8&s=books&qid=1274134974&sr=1-7]Amazon.com: Beyond Portraiture: Creative People Photography (9780817453916): Bryan Peterson:…[/ame]
and an essential book on composition is:
[ame=http://www.amazon.com/Photographers-Eye-Composition-Design-Digital/dp/0240809343/ref=sr_1_1?ie=UTF8&s=books&qid=1274135088&sr=1-1]Amazon.com: The Photographer's Eye: Composition and Design for Better Digital Photos (9780240809342): Michael Freeman: Books[/ame]