As the keeper of reptiles we have special responsibilities:the breeding of species that are threatened and decimated in the field is important to make sure that later breeding projects will have stock available to replenish genetically impoverished populations.Also,captive breeding takes pressure off wild populations BUT we do not need any more red-eared sliders or iguanas.You also have to take into consideration that you will have to adequately house and feed all the offspring and/or find them good homes.Only a handfull of breeders make the jump from hobbyist to commercial breeder successfully.The market for reptile pets is reaching saturation so unless you have something really rare you will have problems selling your offspring for a good price.So forget breeding for profit!But if you produce a few babies of species that you know you will be able to find new owners for,go ahead.Nothing beats the exciting moment when that egg pips and a little nose peaks out.Most reptile eggs have a leathery shell and need high humidity to not desiccate.You need a substrate that holds moisture well like vermiculite or I use coconut fibre and a place that will hold a steady temperature of around 80 to 82 degrees but some eggs need it cooler (like chameleons) and some warmer but 82 degrees is a good shot.The duration of incubation can vary between two months and up to a year for others but most species need about to-and-a-half months to three months.Have a new enclosure ready for the babies and properly sized food items like pinhead crickets to get them eating.Babies will often start pipping and then stay in the egg for a day or two to absorb the yolksac.That is normal and you should leave the baby alone untill it is ready.For more info,contact other breeders or experienced keepers and also do your homework and read what you can find about the species you want to breed.