Ive been researching various products and CHI/Farouk seems to pop up often.  I've seen mention of a Deep Brilliance line of cermaic irons, but Ive yet to find any place online I can purchase them.  Are they available, and where? 

 

If not would the original or Turbo CHI models be acceptable? 

My wife's hair would be like a medium tight curl(kind of pillow stuffing/fake snow like when wet and natural), soft and sort of light-weight when pressed.  She certainly doesn have thick Oprah like hair.

 

What are advantages and disadvantages of the different sizes of flat iron(1 inch, 1 1/2inch, 2 inch, etc)?

 

She normally styles her hair down, shoulder-length.  Pressing weekly, no chemical treatment for a few years now, and no coloring ever.

 

Is there any real difference between the different CHI blow dryers(original, professional, turbo, etc)?