The Filson bag is bomb proof you can't go wrong there with the exception of the spendy factor. You may also want to check Duluth Pack company and J W Hume (they make the Orvis canvas/leather luggage) they make awesome stuff as well. I have a Duluth Pack brief case that's close to 10 years old and aside from some scuffs and fading it's in fine shape.
All who wander are not lost
"Play hard and FLOOR IT" Stevie Ray Vaughan
just remember: the only difference between genius and stupidity is genius has limits