Quote: Any chance you'll have the coop finished before the chicks arrive? If so, You can brood them right in the coop and keep them out of your house altogether. They make an incredible amount of dust from their shed dander. Imagine an oily silt that covers all surfaces, including vertical ones. that's chick dander. Any one with allergies will definitely like NOT having them in your living space.
Brooder space: by the time they are weaned from heat, they should have about 2 s.f./chick so they have plenty of room to move about, practice their flying, and simply play. An appliance box IMO is much preferred to a plastic tote. It gives them much more room, and does not hold as much heat. You'll want to give them a warm spot as suggested by PDR. But, the rest of the brooder should be nice and cool. Many of us are now brooding our chicks with heating pads. You can get the "how to" by reading the article in my signature (written by Blooie). This style of brooding is much safer than a heat lamp, and it more closely mimics the type of heat and security provided by a mama broody hen. the chicks are not stuck under a bright light 24/7, and with a heating pad cave, they actually sing themselves to sleep. They feather out faster, their social development is more appropriate, and they are already tuned in to natural day/night cycles, and when it starts to get dark, they simply go to bed for the night.
Other considerations: you might want to look into fermented feed. (see FAQ article at bottom of my sig.
Building the coop: For back yard flocks, the general recommendation is 4 s.f./bird in the coop, 10 s.f./bird in the run. 1/2" hardware cloth to cover all openings larger than a quarter to make it predator proof. Lots of ventilation is key to having a healthy environment. Check out the option of building a soil floored coop. This allows you to do a deep composting litter in the coop which has so many advantages: Healthier for the birds, easier to maintain. Creates an odorless composted litter that will not need to be cleaned, unless you are reducing the volume of the compost (great for your gardens). Also, consider a variation on the Wood's coop style. A super easy coop to build is a hoop coop (for the wood/stick built challenged folks). Hoop coops are wonderful structures, even if you are not wood structure challenged. The only draw back to them is that the tarp covering needs to be changed as it degrades due to UV light. As for nest boxes, your girls will pick a favorite, and fight over it, but you'll need 2 boxes if for nothing more than to give the least favored girl a chance to lay an egg while the other 5 are fighting over the favorite box.
Hens go broody when you don’t want them to… and won’t go broody when you do. 
