Here's a heads up for when your visa is approved, on occasion, AMTRAK offer heavily discounted train passes to get from Toronto to Vancouver. I moved over there a few years ago and decided to take the opportunity to spend a few days in each of the major stops - Winnipeg, Saskatoon, Edmonton etc. Honestly, it cost me $600 (flight was $300) and was worth every penny. By the time i got to Vancouver i wasn't nervous about moving internationally and i already felt at home in Canada.
Also, if you're entering Canada through the East Coast, the boarder authorities tend to be a little more lenient as to how long they approve your visa (most WHP participants get one year and have to extend).
Best of luck!