I also played with my camera. I have seen a few High Dynamic Range photos on various website and been fascinated with it. So I set about teaching myself. The basic principal is pretty simple. The dynamic range in a normal photo is limited and some area will be over exposed and blown out while others will be in shadow. So you take a series of shots of the same view at different exposures (bracketing) and then use some software to combine them.
Here are my first attempts. I am rather pleased.