For newbies that have that insatiable itch, there really is no better place to start than this fabulous (paginated) article by Ars.The Amiga computer was a dream given form: an inexpensive, fast, flexible multimedia computer that could do virtually anything. It handled graphics, sound, and video as easily as other computers of its time manipulated plain text. It was easily ten years ahead of its time.
Get comfortable, grab a cup of tea, and soak it up.