Saw someone already recommended Ski Barn. If you're driving out to Route 17 anyway might as well check out Cury's too -- kind of hit or miss on the customer service front but last time I was in they had a good selection. They're probably another 10 minutes north.
I've heard food things about (but have never been to) Emilio's in Queens.
Emilio's is cool. I picked up some Salomon boots there last year. I've also heard good things about Panda Sports in Brooklyn.