Bone, IMO getting chickens to get eggs is not worth it.
They make a mess, they smell, the can spread disease (but so can dogs), and they'll ruin a good bit of lawn in short order.
I know someone who spent a weekend in hospital after a run in with a rooster.
I agree with what Junk said
I rather pay the farmer $2.00 a dozen and let him deal with the chicken shit!
They are alot of work, put them away at night, let them out in the day, feed them, water them, move thier run.....
You've got 2 choises about runs really, you can have one that is set in place, but it'll become bare and muddy quite quickly, or one that you move all the time to give them a fresh bit of ground (but you have to move it avery day).
With a moving run there will be chicken shit everywhere for littluns to fall in (BTW, its also really slippery!)
Inevitably at some point you are going to have to kill a chicken, or one is going to die. Are you or the Mrs up to killing a chicken, or deal with one that may have been messed up by another animal?
Ducks IMO are nicer, and their eggs a little bigger and creamier. Geese are evil (and strong, ever try wrestling a goose?

), but their eggs are worth the fight to get them
