Ahhh, dear to my heart. Too bad about this winter.
Everyone has his or her favorites, but I recommend these: First, the Goodman book is a win-win: it's well-written and engaging (vicarious skiing!), most informative and helpful, and buying it locally will help the good people of New Hampshire.
I'm not on the advanced level for free-heel, I'd say a blue-square equivalent, but I've really enjoyed these:
==Wildcat Valley Ski Trail: tops, absolutely, combining the fun of downhill with the beauty, silence and total immersion of hiking. Be prepared for a long workout and therefore use light gear. I did it in WAY too much heavy powder on mid-weight tele gear and had a long slog out. Would really appreciate another opportunity.
==Chocorua/Champney Falls: watch out for getting whipped in the face on the way down, but this was another beauty that had me in love. I switched to snowshoes and stood on top in short-sleeves and crampons. Transcendent.
==Lily Pond & the upper Livermore Pass: Beauty again, also very quiet (and close to the road, too!) and fun, as long as you don't mind working your way through tough spots on the trail. I saw my first bear-claw marks on a young beech there in the late-afternoon sun.
==John Sherburne and Tuckerman Holy of Holies: I'm only skilled enough for the lower half of the bowl, but it's not to be missed. I got up there with my heaviest pack ever on Friday, and was rewarded with a one-on-one session with the mountain early Saturday morning for over two hours before the horde even began to trickle in. I split when it reached a flood, and had had three hours of pure bliss.
I wonder if Tucker Brook is still an option, and would have liked to see the Thirteen Turns; maybe in the future. The Hancocks have a lovely approach, as does the Osceolas/Greeley Ponds area (but not just now, if I hear correctly, after Irene). Waterville Valley is a whole other thing, and the walking towards the Tripyramids made clear what wonderful xc that would be. I'd also love to spend a weekend heading towards & around Flat Mountain Pond. Of course, doing the run from Zealand to Lincoln Woods is also a holy-grail kind of thing (too many religious allusions by now!).
These are my personal faves & desires, or just drop by The Wanderer and get Goodman's book.
Uh, don't forget Avalanche & Indian Passes and Camp Santanoni in the DAKs.
And all this has been gone over many times here, searches will help you.
Good luck!