Hello Sterls and welcome to our family, I am so glad to hear you want to own a grey and I commend you for doing the research to learn all you can before you finally open your home and your heart for one of these magnificent creatures.
You can start by reading thru the many threads as you will find lots of useful information from the best source, actual grey owners, nothing beats actual experience and you will come across many stories of their antics and accomplishments. Greys are known for being one of the best talkers but they have so much more to offer, even if they never uttered a word they will keep you amused and entertained.
I have to say you must have a good head on your shoulders for many young people who decide to get something want it now and do not like waiting for it but if everyone who considers getting a bird would take the time to do the research before plunging in head first then we wouldn't have so many birds in need of being rehomed or rescued.