Check the bigger sportinggoods stores like Dunhams & SportsAuthority. Sports Authority has all ski & snowboard gear at 25% off. Boots & bindings from Ride, Burton, K2, Flow, etc... Prices should drop the later it gets in the season. They also had some older stuff clearanced really cheap.
SummitSports(
http://www.summitsportsinc.com/) is pretty good with prices and usually have later model gear clearanced out. They've got a few stores around the detroit area and an ebay store BarginSports.
Boyne Country Sports in the middle of summer sometimes has good deals.
I'm also lookin for boots & bindings so if I find something I'll post it. If & when SportsAuthoirty drops prices again I'm pickin up a set of Ride bindings, right now they're about $85. I'm hopin to find a good deal on K2 cinch bindings during the offseason.