I have a Vixia F200 and bought a cheap shotgun mike for about $55 and I am real tickled with it.
Microphones | B&H Photo Video
I think it is one of the Audio Technica units. Sorry, my stuff is at the office, and I cannot recall the model numbers..
If your Vixia has the proprietary Canon mini-hot shoe, it is a small matter to grind down the shoe on the mike so it slips in.
You may want to pick something with more heft, but that is a small unit and should travel easily. I also think it would work well for voice in controlled interview settings. Not in a loud crowded room.