Don't forget that because of the touch screen, the nooks battery life will get reduced. I guess depends on how often you will use it. The other thing it's 0.5 inch thick. No web browser etc. I was a bit dazzled by the nook until I learned of the differences, and got my hands on the kindle from a friend and tried it. Yes the kindle isn't perfect, but it wins over with all the features. Do read this blog it might help you make up your mind.
http://ireaderreview.com/