I think they still sell snowboard stuff at Soka skate shop off of Manchester. Other than that its Alpine shop and Dicks Sports. Personally I order most of my stuff online, mostly from The House. They always have killer deals especially on last year model stuff.
13 K2 Turbo Dream 160W w/Flow NXT-FX
11 K2 Turbo Dream 160W w/Flow NXT-FS
OLD K2 Fatbob 154W w/Flow Trilogy