Movies:
Too numerous to mention. Braveheart is my favorite live action movie and Iron Giant is my current favorite animated.
Television:
Firefly, House, Bones, anything that lets my mind soar and escape.
Books:
WAY too many to mention. Some recent good ones are "Map of Bones", "Lamb", "The Magic Circle Quartet", "Da Vinci Code" (sorry, it's a good book), "Odd Thomas", the "Mallorean"... etc.
Heroes:
Anybody who dreams of something and does everything they can to achieve it.