If you are getting a raptor, go with something small. I investigated this possibility for myself a long time ago, and most of the people who kept them feel the bigger raptors are not only somewhat unpredictable, but can do a lot more damage. They all recommended working with smaller raptors for a few years before trying the big boys.
Personally, having grown up with birds my whole life, I think any long lived birds make lousy pets, they are never truly domesticated and live so long, I would never buy another parrot as much as I love them...