Do it yourself.
Japanese packages have not come out yet (mid November) so we will look at those first. But the packages we found on English sites are way too expensive.
For our trip (~ 19th Dec) it looks like we will Bus it to Hakuba (Cheaper than train but slower), stay at a Pension(Happy to pass you the details if you need but they speak very little english, but we managed speaking only the very basics last time) and catch the shuttle bus to the slope of our choice(you can change each day if you like), snowboard and eat out at one of the restaurants in town at night (can also catch a bus for a couple of hundred Yen to an onsen of your choice).
If your not on a budget staying on the slope would be easier but you would be less likely to try other places. Choice is up to you I guess.