Congrats on the cam... A links few to get you started.

http://www.photoxels.com/tutorial_iso.html

http://www.webreference.com/graphics/digital2/

http://webchat.chatsystems.com/~dosw...to_Basics.html

http://library.thinkquest.org/28146/Intro.html

http://tlc.ousd.k12.ca.us/~acody/digi8.html