What do I need to keep my budgies (parakeets) as healthy as possible for breeding?

What do I need to HAVE before they can even start breeding? Im really nervous about how healthy my birds are. And if I am even consideing to have them breed, I want to know what they need to be fed and what they need to be as healthy as possible. What is bad to do, and what is good to do with parakeets. What type of foods are best, and how can i tell if they are healthy or sick. Also, how often do i need to cut their wings, and is it necessary (also with claws)? I NEED THE 411 ON PARAKEETS CARE AND TECHNIQUES. PLAESE HELP!
- Anthony G