Camera gear is not charged duties at the border. Shipping, HST, and any brokerage fees are all that will be on top of US prices. Avoid UPS shipping methods. They charge ridiculous fees for broker and handling. B&H and Adorama are both highly recommended as cross-border shopping friendly.

In the T.O. area I don't know the marketplace as I prefer to avoid the area. Camera Canada in London has a good web site and the people there seem to know what they are talking about. Will order things in for people and may be able to suggest excellent lower cost alternatives. Henry's does carry more items across the chain, but they are way overpriced. Will pricematch according to their policies. Use www.photoprice.ca to compare prices on items and verify stocking before going into one of their stores.