Flying from Washington state to Canada

I am planning my first international flight from the Seattle area to
Port Hardy, BC, Canada during the week of July 4th. I have bought all
the relavent Canadian charts (VFR and IFR), and have Googled for previous
discussions on flying in Canada. However, I would appreciate any
tips on the actual USA - Canada transition with regard to ATC. Will
US ATC hand off VFR to Canada at the border, or will I need to
call up on my own? "Knock, knock, can I come in, eh?" Same question
for returning to the USA.

Any suggestions on routing? Is it advisable to fly over top of
Widbey Island NAS, or better to remain east and cross to the north?
What is the best route past Victoria heading up Vancouver Island's
east coast?


Thanks,
Ross Oliver