Assemble Animation / Sound And Background Image Automatically?

I need to learn how feasible it is to automatically assemble Flash animations which take a background image, an animation (or a set of vector drawings that can be turned into an animation) and a sound file from a set of files. In other words, assume that I have the following set of files:

3 background images (let's assume JPG)
3 animations (no sound, no static background)
100 sound files (let's assume MP3)

So if I want to code something like:
for i 1 to 3
for k 1 to 3
take animation i
take background image k
for j 1 to 100
take sound_file j
resulting_swf = assemble (animation[i], background[i], sound_file[j])
save(resulting_swf)

Which will produce 900 Flash animations with different combinations of sound and background, what is the starting point? Are there some libraries (in Python, Perl, PHP, etc.) with good documentation and examples to develop something like that, some program that I can run from the command line?