You're in for a neat, new adventure. I'm still in the beginning too but I'll tell ya, I haven't had so much fun doing something as I have raising my chickens lately. Anyway, everything azygous says is spot on. I brooded my gals in my garage but I'm building a second coop/run to brood the broilers I have coming. From now on I only plan to brood in the coops outside. Even in the garage you end up with a dusty mess, even if you clean everyday. Also I do believe it's best for the birds' sake to be outside the whole time. I started building the coop and run I have my gals in now in November and they moved into the new set-up in mid-February; even though I began construction well before they'd need to move in at 6-8 weeks, it was still close and I almost didn't finish in time. So that last piece of advice, to build the coop/run before getting them will save you a lot of stress so you can focus all your energy on your new birds. Good luck!