I suspect the only packs I ever buy again will be Osprey, I have a Manta 30 for dayhiking, and I love it.
Check out their snow packs: Vertical Endeavors / Snowplay - Osprey Packs, Inc :2014: Official Site
The Reverb sports vertical and horizontal board carry, insulated hydration and looks like exactly what you're looking for. Lifetime guarantee, if you fuck it up, you send it to them and they repair it by hand for free.
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