Originally Posted by xenigo

Great camera. You're going to eventually want to do some precision metering, and you'll need a light meter to do it, especially if you're using flash. The evaluative light meter in the camera only goes so far, unless you carry a grey card... but it only works for ambient light.

I recommend the Sekonic L-358 light meter. This allows you to set the camera to the exact exposure (night time being the exception), and not what the camera's auto-mode guesses will make an OK photo.