But the OP would have to rent a car to do that. Not sure if that was in their plans. I agree with others that it would be
easier to fly into Vancouver, but given the price differential, it might make more sense financially to fly into Seattle (flight to Seattle + Victoria Clipper cheaper than flight to Vancouver + BC Ferries).
Caradana -- Make sure you confirm that the Victoria Clipper schedule will work for you. Meriweather already gave you the URL. You will need to arrive at the ferry at least 30 minutes before leaving (as I think you might clear customs before boarding the boat). The airport is about a 20-30 minute cab ride from the waterfront (depending on traffic). The nice thing about the Clipper is that it docks at Victoria's inner harbor so if your work is in downtown Victoria, absolutely no need for a car.
You could also take a floatplane from south Lake Union (about a mile north of downtown) into Victoria's inner harbor (
www.kenmoreair.com). This is something I've always wanted to do as I've heard it is absolutely spectacular. But it is much more expensive than the Clipper.