One of the easiest Fractal programs I've ever used was also free. It was called
Fractal Explorer and you don't even need your abacus to suss the math out.
http://www.eclectasy.com/Fractal-ExplorerHere's the last link I had for FE.
{it's still functional}
Attached are a couple examples of what this thing does. But be fore warned, fractals will
kick a lesser computer's monkeyass by focusing all of it's powers on the equations that
make up the beautiful and organic images.
Enjoy the chaos,
Noel {inhaling residual fractal vapors} Grassy
edited the link's address