40 seconds Flash or 3D animation

The idea is to have the box floating in mid air, for few seconds, the sides of the box will open one by one, the logo of the company sticks out and then some products either flying in the box or around the box. The whole sequence should be no longer than 40 seconds. It should fit on a regular computer screen (800X600), black background; the coloration of course has to be RGB. We will play the clip on a computer screen, trying to give it the 3D effect. The clip is for a grocery store, and the items we are talking about are 4 or 5 items you will get in such stores (can of soda...) You can use any 3D program you are familiar with; it has to be an AVI file.