How to write exchange rates / Recommend a good exchange rate alert service?

[misstache]

Hi, all clever facial-hair fearsome financial finesse-ers...

I live in Canada and pay some bills in USD. I have one Canadian bank and one US. Right now the CAD is down, and it'd be great to find a service that emails me when the rate is 1 CAD = 1 USD. I've found some services that apparently do that:

https://www.google.ca/search?q=exchange+rate+alert+services&ie=utf-8&oe=utf-8&aq=t&rls=org.mozilla:en-US:official&client=firefox-a&channel=sb&gfe_rd=cr&ei=HYY3VIW_D6OV8Qfq94CYDQ

But I can't figure out how to properly enter the rates the way they want me to. Any suggestions? I was trying http://www.when2convert.com/ for instance, and couldn't get it to accept the rate I wanted, because I wasn't typing it in the way they wanted to receive it.

Also, if anyone has any suggestions for a service they use that they like and have a good experience with, I'd love to hear about it!

Thanks!!!