Create an Animation

I am working on some Powerpoint presentation and I need help from a good designer. I want to add few nice graphics and beautiful animation, it may include 3d effect, or may not. In this project we will focus on only 4 to 6 slides with 1 to 3 animations. Please show me any similar work you did if possible. Thanks. I have attached some example to show what I need exactly. Which is making two slides with animations. Slide 1 will be similar to the image [login to view URL] picture. It is a kind of computer network (feel free to change all graphics). What I want is that they don't appear all at once but the number of computer increases in an animation, then when the network become too much complicated ( a lot of computers), they all fall down like the google gravity effect ([login to view URL] ) Slide 2. In this slide I want it begin with a complicated network (see image 1 in [login to view URL]), then with an animation we separate the computers (boxes) from the network materiel (circles) such as the second image in slide2.png. Then with an animation we shrink this group of network material until it become very small and in center.