The sturdy and super light Marker Kingpin Binding is an easy to use. I've not popped out of them yet while skiing and the heel raiser and toe clip are really easy to adjust with your ski poles. Works great on the ski hill too when giving it a hard time.
Rossignol's Soul 7 is a lightweight ski, really flexible and goes well in deep powder as well as on the piste. The honeycomb core means that it is strong as well as light.