Welcome to BYC. Glad you decided to join our flock. If sheer egg production is your main priority. I would suggest going with either White Leghorns (for white eggs) or sex links (for brown eggs). These are the best layers in the chicken world and the hens that are used by commercial laying houses for this very reason. I especially love the Black Sex Links (Black Stars) as they are very friendly and hardy egg laying machines that consistently churn out more than 300 large brown eggs per hen per year. If you want pure breeds (sex links are hybrids) good laying breeds that have a reputation for being calm and gentle include Australorps (excellent layers), Faverolles, Sussex, and Brahmas. There is a good article at http://www.the-chicken-chick.com/2012/11/feeding-chickens-at-different-ages.html on feeding chickens at different ages. Please feel free to ask any questions you may have. We are here to help in any way we can. Cheers.