Also, when they say "Prime", they mean the Bank's internal prime lending rate, not the BoC Prime. They aren't the same between institutions, so you should compare on the actual net interest rate.
@phoenixmod There's no way an unsecured LOC is available at Prime+1%, unless it's a short term teaser rate. Mortgages are Prime+1%-ish, and a secured LOC is probably still 2-3% above prime.