Simple animation project in Maya

I have this project of a simple Solar System in Maya from a tutorial. The tutorial is: [login to view URL] I have the entire project in a zipped file. It works just like it is suppose too. I added some texture to the planets to make them look real and changed the moons. It also has a background of "space" using a plane. But, what I need now is: 1. I want the planets a bit further apart from each other. 2. Make them go around the Sun, but NOT in one straight line. ? ? ? I want them to orbit the Sun like in real life (separately). 3. I would like to make the Sun throw out some light also. If you are sure you can do these 3 things I will take your bid ASAP!! I'll send you the zipped file so you can implement the changes right away.