For your driving directions in Canada, I previously wrote about Mapquest Canada (Mapquest.ca). Mapquest Canada is indeed great for your travel details - it has trip planner to help determine the best route to your destination and detailed coverage of remote areas of Canada.
But there are other sites as alternative to Mapquest Canada which may be more useful for you depending on where you are located.
MapQuest Canada Alternatives
Canada Google Maps (maps.google.ca)
Google Maps is a Google service offering powerful, user-friendly mapping technology and local business information including business locations, contact information, and driving directions.
Canada Yahoo Maps (http://ca.maps.yahoo.com/)
Yahoo Maps provides driving directions based on a given address, a pre-stored location, or an airport code. It also offers street maps and driving directions for the United States and Canada.
I'll update this post if I find other Mapquest Canada alternatives.