Try the Inns of Banff/Swiss Village
Thay have always been the cheapest that I have found, and they have a really nice facility.
For Valentines we got the top room with champagne, pillow chocolates and breakfast for $170 including all taxes.
Expect to pay around the $150 mark with all taxes etc.
"I believe that banking institutions are more dangerous to our liberties than standing armies. If the American people ever allow private banks to control the issue of their currency, first by inflation, then by deflation, the banks and corporations that will grow up around the banks will deprive the people of all property until their children wake-up homeless on the continent their fathers conquered."
-Thomas Jefferson 1802