They had a couple of acres -- when they first moved in, the place had a small henhouse (like for about a dozen chickens) and a run. They were planning on having more chickens than that, so they built a new shed and enclosed an area, about the size of a city-type backyard, with some small trees in it (for roosting) in a wire fence. The trees were holly, which really liked the extra nutrients, and produced a lot of berries (my friends would clip the trees around Christmas, and sell the holly for decorating). It more than made up for the holes the chickens dug in their fenced yard. A water hose attached to the shed was useful for filling up the flock's water containers (buckets and even an old bathtub).
They kept the old henhouse for birds that were unwell, or when they wanted to breed a particular hen and rooster. I know that from time to time they have lost a few birds to eagles and hawks (the people next door, and the lady across town with the ducks, put protective netting over top of their run), but they are just putting up with it. Some other friends who live near them have a flock as well, and they say it's not been a major problem. They built the chickens a perfectly good house, but a large contingent hangs out under the porch (possibly because the kids sneak them treats?).
The first couple I mentioned, get their feed from the local feed mill (which does organic feed and various mixes for layers, fattening, etc.) -- went through a sack every 3-4 days but that was for 50-60 birds -- the hens also got kitchen scraps, and had the run of the yard. Some of them would go into the garden as well. (It turns out that chickens don't eat as much as ducks ... I was brooding ducklings for a while, and was amazed that the chickens would "eat like birds" while the ducks would shovel it down!)
There are some good books out there (e.g. Storey's Guide to Raising Chickens, and even the Lee Valley Tools farm reprint series) which have some plans for building various-sized henhouses and runs. Your local 4-H club would also have plans (see if they have a booth at the local fall fairs, which should be starting next month?).
I don't have my own place for keeping animals (alas), but I have hatched out poultry for other people in a tabletop-sized incubator. It sounds like you might be looking for one of the older "dual purpose" varieties of chickens. These days, commercial poultry production tends to focus on either eggs or meat -- the layers are too bony to be good eating, while the "meat birds" don't produce many eggs (and generally don't live more than a year or so anyway). The older types of chicken were meant to be used for both eggs and meat -- not commercially "efficient" but it does mean that the roosters can be fattened and eaten (rather than simply being "thrown away" as chicks, as happens to the egg breeds these days). Also these older breeds are in danger of extinction, which is a pity because they tend to be hardier, better at foraging, and prettier than the standard Leghorn/Sussex or Cornish/Rock crosses (used for eggs and meat respectively, by the big farms).
http://www.albc-usa.org/wtchlist.htm#chickens--more info on endangered chickens
http://www.feathersite.com/Poultry/BRKPoultryPage.html#Chickens--pictures of different breeds
http://www.feathersite.com/Poultry/BRKPoultrySites.html#coops--more coop plans
http://www.ithaca.edu/staff/jhenderson/chooks/chooks.html--detailed info on breed characteristics (hardiness, feeding, ease of handling, etc.)
If you live in a cool damp area (like the Pacific Northwest), may I put in a plug for ducks as well? They seem to be better at withstanding harsh weather (better insulation -- chickens actually originated in the subtropics) and don't require as much housing. Some varieties are as productive, in terms of eggs, as some chicken breeds.
p.s. I forgot to add about the crowing. If you have roosters, they will start crowing early in the morning, and keep on doing it all day! If you have neighbors close by, you might want to check with them to see if they're cool with this (or just do without roosters and buy only female chicks, or cull any males when they are still immature).