New build - First build

[Sundance2015]

I about to do my first build. I purchased the Dart 450 FPV Quad-Copter frame from HK and plan to use the QQ Super controller. I need to get a TX and I am looking at the Dx6i. I am coming from the dji Phantom so I would like a TX that has spring loaded to center joysticks I am use to (as are on the Phantom TX). Is the Dx6i set up that way? If not what is there in that price rage that is? I think I want mode 2, I know in mode 2 the throttle is on the left but is it spring loaded to center? What about the other joystick, is it spring loaded to center as well?

Also, do I need a GPS with the QQ Super or does it just maintain current position with the accelerometers and not GPS position?

Thanks