you want a contra-rotating helicopter like the twister medivac (£80 ish).they are as stable as anything but can only be flown indoors or outside on an extremely calm day.I got one and it is fantastic to learn with.it doesnt fight you and almost hovers by itself.I just bought a chinook today (£135) and thats even better.dont buy one with a tail rotor and paddles because you will get fed up trying to keep it in the air.