Welcome to our new beta design! Click here to go back to the old Newschoolers.
.lenconI'd recommend ON3P but if you need a ski that handles ice well, you could probably find a better ski out there since most ON3Ps are rockered, unless you get presters, which I have no expereince with.
With your $600 I would get a nice durable pair of skis and bindings. Do you want something stiff or soft? Rocker? Symmetrical?