Used to work with birds, mostly finches, but as a bit of an ex-songbird specialist I offer you my pm box for what little I remember.

Basically, though...if you're looking for a friendly bird, stick with budgederia. Songbirds just don't get as attached to people. Most people who are looking for songbirds are looking for the song, though...and there are some tricks to choosing there. Still, it sounds like you're leaning toward lovebirds, so I won't go into them. Give me a shout if you want, I'm usually around.

G