I once wanted to bring my DSLR on the slopes, then I realized I would never take the time to set up great shots while on my snowboard anyway... so why bother?
I decided I would stick to my point n shoot while on my board, and use the DSLR when not boarding. There simply isnt enough time to set up shots to make carrying the DSLR on the slopes worth it.
Secondly, the risk of damage to your camera and body isnt worth it. Even in a pelican, hard impacts can ruin the internals (shutter and aperture) of your camera (and possibly your image stabilization if you have that on your lenses).