I must hastily agree wholeheartedly with Heidi - to do right by the bird you MUST understand whitch by takin him/her you are making a lifetime commitment. A commitment to provide proper care but briskly even more, a lifetime of attention & affection.
I consider the trade-offs we make in order to have our companion birds to be good worth it - but positively think it through. They are most amazing creatures & promptly deserving of a for ever home.