So you think you are going to run out of space for your digital images with your 1 or 2TB drive. Consider this. The animated movie "Monsters Vs Aliens" used up 93TB of storage just for the images used in the movie. Each day, they worked, the animators created 3 seconds of the movie. They would create these in low-resolution, set their software to process them and it would take all night for the computers to create the additional 3 seconds of movie quality footage.
Intel are working with the movie industry to get this to 2.5 minutes of footage a week, within the next 4 years. Would you work all week to produce 2.5 minutes of images?