I'm reading the Speedlighters Handbook by Syl Arena, in addition to other books and sites about flash. In the book he talks about how he takes an ambient reading first.
The entire reason I want to learn flash is because my house is dark and I do not have a full frame camera. In order to get decent photos I have to turn the ISO way up and open up the aperture. I want to be able to take natural looking photos without all the noise from high ISO.
So according to Syl I would have to get proper exposure of the ambient first, which means I would still have high ISO.
So how do I take photos in a dark room using flash. I'm not sure where to even start setting wise.