This is a great Master of Orion III wallpaper of an illustration of the "Trilarian and Raas in Battle". This comes in four sizes, 800x600, 1024x768, 1280x1024, 1600x1200.
This movie gives you a suspenseful space combat sequence as an introduction to the third installment in the Master of Orion series.
Here is an short video taken from a video recorder of Rantz Hoseley speaking about the atmosphere and viewable 3D galaxy.