Sorry guys, but application of your new toy is by far the best way to learn, far more than any class you could take. It's a practical hands on thing that needs to be experimented with. My £0.02 worth anyway!
You need to learn the correlation between ISO, Shutter Speed and Aperture - and when you've got exposure nailed you can learn the theory and practicality of composition.
Learn by doing, it's far more fun and you can learn from your mistakes, not other peoples.