I strongly recommend the Never Summer Infinity. The rocker camber makes it harder to catch an edge, easier to turn and carve. I started out riding a burton feelgood with regular camber and switched to the infinity after a demo a few years ago. It is a very responsive board but not too soft to ride all over the mountain. It gave me a lot of confidence and really helped my riding. On the mountain I've let 4 women (three friends and a woman I met on the lift) try the board and all of them bought it and love it.
It's good you got boots that fit and bindings that work. Makes a big difference.