Im a newbie roaster myself and went thru all those same questions.
Before discovering the world of home-roasting I was buying my roasted coffee from a couple places including Coffeeco.
Given that the things that kill fresh roasted coffee are light, moisture, oxygen and heat, I really liked the idea of the black foil lined, press sealed bags with the one way valve.
I ended up buying a stash of these black bags from site sponsor Coffee Parts, to put my freshly roasted coffee in so it can be stored and de-gas nicely in the cupboard for a day or so away from light, heat, moisture and air.
These bags are also handy for giving your freshly roasted coffee to freinds family and well wishers... (just ask for the bag back :-) )