GeeDub wrote a review of Arc'teryx Theta SK Pant - Men's on January 22, 2007
I've skied in a couple blizzards with the SK and returned bone dry. Ridiculously good. Only complaint is the suspenders are narrow, but the pant is much better than anything else out there. I'm 6'3" 200 and the XL reg fit perfect (maybe even a little baggy depending on the layers). Bib pockets are small, but perfect for a wallet, money-clip, keys or phone.