Currency converter that uses Bank of Canada rates?

Hi there, I'm a Canadian and just got screwed when visiting another country because the exchange rate in the Unit Converter dashboard widget (supplied by Yahoo Finance) was very different from the Bank of Canada's exchange rate for the Icelandic Krona (ISK), with a difference of about 40%..

Needless to say, I was pretty screwed because I relied on this widget, which seemed to only have screwed me on the ISK and not Euro and Pound conversion. For example, Yahoo told me that 2200 ISK should be ~$12 CAD, but Bank of Canada says it's ~$22 CAD, which is a huge difference, especially once you add on my credit card's "convenience fee."

Anyway, I'm looking for a widget that uses the Bank of Canada exchange rate (here) so that this doesn't happen to me again. I could just use the internet form but I like the convenience of a widget. Does it exist? If not, that's ok, it's no big deal to use the internet form, but you know how some of us Mac users are, we like widgets... lol.

Thanks for your help!!