Digital BW, The Print

I was all set to buy a 5D MkII awhile back, when I heard complaints about weather proofing and failures in light moisture and cold weather (Luminous Landscape trip to Alaska).  That put my buy decision on hold.  

I'd love some feedback from users on this forum.  Has anybody used their 5D Mk II in wet weather?  Results?  Problems? Thoughts?  Has Canon made any changes to the design to correct this issue (if it is an issue)?

Thanks, Lou