hi northern monkey.
There are some great information on the web for African Greys. I have ahd mine for 20 years now. He is a wild caught bird from way back when it was still legal to so that. He is very friendly to me and apart from the odd asthma attack he has, he is in good shape. The avian vet I use thinks he could be about 30 years old.
I used to breed greys many moons ago and a lot has changed over the years.
The best advice I can give you is to be prepared to spend as much time as you can with her/him. Make sure you give supplements of Vitamin D. calcium and probiotic. I use "Potent brew" weekly for mine along with Calcivet, all available at www.24parrot.com. Fab website.
I always trim the flight feathers on my birds as I know of people who have had bird crash and die due to flying at windows.It does not hurt them if done correctly and to look at them you wouldn't even notice.
Ooo..and don't forget to put them in your will, they live an awful long time!!! Good luck,