Your first decision to make is if you want to deal with baby snakes. For future wild caught animals, try to avoid taking large females as these eggs are the next generation of wild kingsnakes. (The hatchlings should not be released because they have been in with your ball python)
Scroll down this forum for specific incubation ideas; any colubrid species should work for kingsnakes as well. The kingsnake forum should have some good ideas as well. You should also consider giving these eggs to a more experienced herper if you would like to see them hatch but don't have much experience with reptiles yourself.
Something definately worth mentioning is your current setup. I suggest studying both species of snakes. YOu will soon find that they need different husbandry techniques and should be seperated. In addition, it is a bad idea to bring any new animal (especially one that is wild-caught) in with an existing pet's enclosure. Any diseases and parasites that your kingsnake may be used to are brand new to the unsuspecting ball python.
The first place I recommend you go is the kingsnake and ball python forums here on kingsnake. Also go to a petstore or bookstore and buy a book about each of these species. After or during your research, if you have any further questions, feel free to post here again 
Ian