Keyboard Features

hi,
I'm a long-time guitar player with an interest in learning to play keyboards for incorporation into music I have/will be recorded. Of features offered the portable keys, the ones i think would be most imortant to me are keyboard touch response, piano & organ voices at the least, full keyboard mode, the ability to connect to an external recorder & a tuning feature so that i can tune the keys to already recorded material.
Which portable Yamaha keyboards have all these features?