Barbra, check out this link http://www.luminous-landscape.com/tutorials/understanding-series/understandexposure.shtml

and this book
http://www.amazon.com/Understanding-Exposure-Photographs-Digital-Updated/dp/0817463003

Everything in photography has to do with light. You can buy exactly what Helmi has, from the camera to the lights and unless you know WHY and how to use them, it won't get photos like that.

Better cameras make things easier. They don't make awesome photographs because its a good camera. Helmi made beautiful photographs with an olympus 3mp point and shoot. Its all about light.