I would suggest something like a Gander Mountain or Dick's Sports or Cabela's or something. You won't end up with snowboarding specific snow pants, but you'll proabably find some that fit. Chances are you'll only find them in black though.
Originally Posted by Stephen Hawking on Pink Floyd's "Keep Talking"
For millions of years, man lived just like the animals. Then something happened which released the power of our imaginations. We learned to talk."