The prices for Canon Digital SLR Cameras on the other pages are great. You can often get excellent prices over the Internet or from phone-in sales. These people do not have to pay for a brick and mortar storefront, or even sometimes cameras to keep in stock. So their overhead is a lot lower, and they can sell the cameras for much lower.
However, there's another approach; you can check the prices at auctions. Here's a few examples.
Canon Rebel
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CANON REBEL XSi 122 PIXELS DIGITAL CAMERA NEW |  |
26 Bids | US $465.00 | 11h 1m |
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digital slr canon rebel xt almost new | |
21 Bids | US $420.00 | 19h 24m |
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Canon Digital Rebel XT 8MP Digital SLR Camera AS IS g | |
18 Bids | US $154.01 | 19h 25m |
Canon EOS
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Canon EOS 20D 82 Megapixel | |
9 Bids | US $441.00 | 1h 16m |
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Canon EOS 20D 82 Megapixel body only | |
24 Bids | US $355.00 | 1h 49m |
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New Canon EOS 40D Enthusiast Kit 17 85mm AUS Stock | |
8 Bids | US $1,045.20 | 5h 37m |