Got mine at Wal-Mart at C$70 a pop. Dealer wanted C$100 a pop. Overall, the tires and steelies cost me C$690 after taxes at Wal-Mart. This was for 15" with 195/65R15 tires. Didn't feel the need to keep 16s in the winter as the higher profile of the 15s should behave better in winter conditions plus it's cheaper, so It's a win-win.
Wal-Mart didn't have a listing for the rims either, but I guess it seemed to be one of the few places where the employee was not an idiot. He called his supplier and it turns out that they do stock the correct rims. He even thought to write this into the book for future customers! I seldom see competent employees in retail.
Anyways, if you're in London, Ontario, the White Oaks Wal-Mart knows which rims you need.