100% agree with you on keeping your adult females...they are the bread and butter of your colony. I keep my reptile room around 80-82 degrees and just keep my bins close to the oil radiator heater I setup in the room. I feed mine the powder left over from my rat food, carrots, apples, potatoes, and oranges. I also put in water crystals to help with humidity and provide a source of water. I've bought from several places. Here is an online breeder of roaches that I have used that does have starter colonies available: http://www.buydubiaroaches.com/forsale.html