Here is a great online e-book with lots of information about raising poultry; My Pet Chicken.
The chicks we have will eventually end up in the chicken tractor 'working' the garden. They probably won't head out there until they are about 5 weeks old. Until then, they are growing in a large Rubbermaid tub in the barn.
We use old grass hay for their bedding and clean it out every day or two. With only 3 chicks, they don't make a big mess.... yet.