Hey shiz - it'll be no problem with the right panniers. I have size 14 feet AND 175mm cranks and I had no problem with 42.5cm chainstays on my cyclocross bike when I toured Europe this summer. I used these panniers. That said, they were pushed all the way to the back, but I had no problems with handling, even on twisty mountain decents. Those MEC panniers should work too. Worst case scenario: you have to buy longer arms that attach to your seatstays and the rack. I believe MEC still sells them...

The BOB trailers work too, but really affect the handling. I fnd they also tempt you to carry too much weight as they're so spacious. The more I toured, the less I carried in my panniers. When you hit Alberta, you'll understand.