Thanks everyone! I knew you had some good advice...
We have been considering a 'big' bird for a few years now, and since we got our Quaker Ava we've realized that we are pretty competent 'parronts' and have the time and money to spoil another bird. Although Ava has taken over the livingroom with her cage, playgym, and tree, we have recently renovated our office and have room for a new bird. We also have an extremely knowleable and reasonable avian vet virtually across the street from our neighborhood.
Besides the greys and amazons, we have considered TAGs, Hahn's macaws, eclectus, and the mini macaws.
We've been doing research for about six months... We've visited and interacted with several adult and babies of each species, and then narrowed it down to a CAG or an Amazon...
We went to a bird fair this weekend to get some more 'hands-on' experience, and we're leaning now towards an Amazon, most likely a blue front. We've always loved the CAGs and TAGs, with their quiet intelligence and cautious nature (that's just what we've experienced, I know every bird is different) but we're drawn to the loud, outgoing Amazons. Our Quaker Ava is loud and bossy and a big clown and we love her big personality.
We are aware of the emotional/physical issues...Amazons have the hormonal 'rages' and are very loud, and Greys often pluck...We are prepared to accept the bird's natural characteristics and complement that with proper training...We also will love our bird even if he plucks himself or never speaks 'human'.
I'm scared of the noise level of the Amazon, not for my family but for the neighbors...However, the people to the right of us are separated from us by a big lot that can never be built apon due to drainage, and the woman to the left of us is virtually deaf. The people across the street have a big noisy dog so they can't complain...(I've really tried to think this out, haha). We also have a house down the street with a big Macaw, he sits outside sometimes in his play cage and often hollers, so our neighborhood is 'bird' friendly, or at least previously exposed to them...
I also worry about our son, who is almost three. I'm not really fearful of him being attacked, as he respects Ava and will only interact with her when I am holding her for him (he can't reach her on her tree, gym, etc). I would certainly not let him alone with an Amazon! I am worried about the jealousy aspect...he's our only son and sometimes he gets frustrated that I'm caring for Ava and tells me "Mama, I'm a birdie, too!"

I will make it a point to give him extra love!!!
Also, I worry about Ava, once again not from attack (they won't be allowed to be physically together, i've heard horror stories of big birds snapping Quaker's legs or worse) but of her being jealous as well. She is our spoiled baby and acts accordingly...
Then I get really paranoid and think of all the worse case scenarios, I've even gotten to the point where I'm harassing my poor husband about 'parrot support' if we'd ever get divorced

, and we're planning on redoing our wills since Amazons live so long...I worry I'm going to be a broke and homeless old lady with birds crawling all over me!!!
Which brings me to adopting a 'Zon, I've been looking at all the bird havens in the area and I have to be honest, the idea scares me. There are only a few places who would let us adopt due to geographics (most havens want to visit your house several times and therefore you have to be in their area) and most of them are offering 30 year old ex-breeder pairs who don't interact with people or they warn you that if you have kids you can't adopt their birds. I feel terrible, I have always been an advocate of adoption and have never bought any of my dogs or cats. I even adopted a lot of my fish as a kid...It's still an option I will consider though...
I've just been going on and on, thanks for everyone who responded and even took the time to read my bird musings...