We have two cats, and they mostly just wanted to sniff them, BUT, to be safe we had the chicks behind a shut door! We kept ours inside the laundry room in a mini run made of cardboard and bedding.
We got ours from a feed store, but if you don't have one around, our don't trust the one you have, i think I've heard that my pet chicken Is the place for mail order chicks.
Oh. Get your coop and run ready for the little darlings. Build bigger than you think you'll need. DON'T buy a prefab coop, they suck. Baby chicks eat more than you think, get lots of food for them. A heat lamp isn't necessary unless where you're keeping them is cool/ cold.
One last thing, try to keep yourself from being with them 24/7. It's harder than it sounds! I work from home and got practically nothing done for a few weeks!