I had the same issue with IT Supplies - the cartridges show up as $71 each, not $62. Even at $71, IT Supplies (assuming the shipping is reasonable) is the cheapest I've seen as a current price. Hunt's used to sell these in the high 60s (something like $67, if memory serves), and that was the cheapest I'd found, but they're now up to $75 both in store and on the web.
Canon is doing a heck of a job controlling pricing on these, maybe even fixing prices. If they're just squeezing their dealers, that's legal (set a low margin), but if they're saying "you can't sell these below $75" and enforcing it, that's NOT! They CAN say "you can't advertise below $75 or we'll take some of your marketing money away" - that's why B+H has all those "add to cart for lower price" buttons all over the place, but they can't actually prevent people from selling lower. Most camera stuff has a spread of 20% or more between high and low prices, while Canon's managed 3% here...
Chris - I'll give you a call - hope you can beat IT Supplies...
-Dan