You are doing the right thing, reading all you can get your hands on so you will be prepared. Greys are amazing creatures and you won't be disappointed if you know what you are getting into.
I already had another parrot before I got Josey, so even though they don't like each other, they do keep each other company, of course in separate cages. The sun conure is jealous but I keep a distance between both when they are out of the cages.
LOL, I still haven't tried the one I got for Josey yet. I am going away for the weekend and so it will be next week before I can try it. Pitiful, just pitiful.
Welcome Heidi to our family, you won't find a better bunch of grey lovers than here. Glad you are getting the info before purchase you won't regret it. Keep us informed and enjoy.