I recently saw a TV commercial for a nifty little helo from air-hogs . . went for about $70 . . but it seemed quite advanced . . twin rotors (to negate the need for a tail rotor) and twin thruster motors to provide full lateral control (forward, reverse, left, right) . .
. . a quick google and it looks like it's called the Reflex . .
. . no personal experience, just looked good . .
Pete C