Murray McMurray Hatchery's website will have a ton of representative pictures of different varieties, along with a brief description of their temperament, egg color, etc. Once you've decided on a breed to suit your needs, you can order from them if you want a bunch and don't mind raising them from chicks, or hit Craigslist, in the farm and garden section. You can get everything from eggs to grown birds, there. Supplies are available at your local co-op, feed store, or Tractor Supply.