This handy website will give you the conversion rate for any amount of
money:
http://www.bankofcanada.ca/en/exchform.htm
***
This is the Canada customs website.  It seems that what you need is proof
of rabies vaccination.
 
<home page:>
http://www.ccra-adrc.gc.ca/
 
<specific link>:
http://www.cfia-acia.agr.ca/english/anima/heasan/import/foxese.shtml
 
An import permit issued by the Canadian Food Inspection Agency (CFIA) is
required for the import of these animals from all countries, with the
exception of ferrets being imported from the United States.
 
For personal pets, these animals must have been in the owner's personal
possession in the country of origin and accompany the owner to Canada.
 
***Ferrets from the United States may enter Canada without an import permit
if a vaccination certificate signed by an accredited veterinarian is
presented at the port of entry and attests that these animals have been
vaccinated against rabies within the year preceding the date of import. ***
 
A certificate of rabies vaccination must accompany any pets over three
months of age brought into Canada.  Seeing Eye dogs are exempt from this
requirement.
 
POINTS TO REMEMBER:
Police radar detectors are illegal in Ontario and seat-belt use is
mandatory.
 
****
The US Customs info is a bit harder to decipher:
http://www.customs.gov/travel/travel.htm
 
"TRAVELERS FREQUENTLY INQUIRE ABOUT TAKING THEIR PETS WITH THEM TO THE
UNITED STATES.  All such importation are subject to health, quarantine,
agriculture, wildlife, and customs requirements and prohibitions.  Pets
taken out of the United States and returned are subject to the same
requirements as those entering for the first time."
 
I couldn't find anything about ferrets specifically, but at least for dogs,
proof of rabies vaccination is necessary.  Anyway, the website is not quite
as clear as its Canadian counterpart.
[Posted in FML issue 3172]