I recently got access to a canon 580 ex II speed light. It changes the spectrum of things you can capture and adds an extra calibration to light control.
the most interesting thing is that for the first time ambient light does not determine whether or not you can shoot an event. As it can become a secondary light, meaning that things like shutter speed and the aperture are not such a big trouble any more (although they need to find a balance).
At first the flash is intimidating as half the controls don’t mean much but through research and a lot of it from the strobist blog as well as tutorials from guys at one touch. I at least had an idea of how to go around it after all this. Hoping to do more shots with it. For now this is what has been achieved.