I thought course sand was the most sanitary. The bedding/litter system seems kind of gross because it is layers upon layers of poop. Doesn't that harbor bacteria? Doesn't it smell bad?
The thing with the Deep Bedding is that the poops are quickly dried out so that bacteria can never grow. Then, when you clean it out and make a compost pile the poop and the shavings/etc. compost together and the composting reaction destroys the bacteria (moreso with a hot compost pile, but in due time with a cold compost pile too).
Personally, I think that sand is unsanitary. When you scoop it there is poop dust left behind but it can never compost. Should it ever get wet it will REEK. When you take it out you're left with a pile of poopy sand, which won't compost, just rot.
How do you handle food and water? I read something intersting about using a large trash can with feeders for food, and the rainwater collection system. I haven't thorougly researched the rainwater deal yet.
If possible, I prefer to keep feed and water in the run. That keeps spills from contaminating the coop.
I like the old-fashioned hanging metal feeders with the deep pan and the inward-rolled lip to minimize spillage and waste:
In Praise of the Traditional Hanging Feeder
I also like horizontal nipple waterers. I make them from 3-gallon containers that the grocery store bakery gets frosting in because I work in a grocery store and because I can't lift a 5-gallon bucket of water.