Being from Wisconsin, I understand completely.
Does she have just walks, or walks and a driveway? If she has a driveway, how big is it? How long and wide are her walks?
If just for walks, this little machine gets the job done nicely.
http://www.honda.ca/PowerEng/Snowblo...20/default.htm
the rest:
http://www.honda.ca/PowerEng/Snowblowers/default.htm