Thanks guys! I'm not sure how the wifi will work at home, only annoyingly slow satellite internet is available at my husband's house, and the closest neighbor is a mile away, with others much further... he has a wireless router and all that, but I don't know if that counts as "wifi." I might have to get a Canadian Kindle just for the free 3G.
This page (the 3G Kindle), when I select Canada, says:
Free Wireless: Free 3G wireless lets you download books right from your Kindle. No monthly fees, service plans, or hunting for Wi-Fi hotspots. For non-U.S. customers, there are also no additional charges for wireless delivery in or outside your home country.