Dittos to what Ed said. Plus, and this sounds cliche, but read, read and read again, the camera manual. Play with the camera, get familiar with changing settings and know what they do. It's all in the book. That way you won't find yourself fumbling when you see Bigfoot holding hands with Jackie Onassis next time you're out camping. Also, and this is just a personal preference, go through the Custom Functions and take the AF away from the shutter button and switch it to the AE button. You get used to it.