Hi runsets, thanks for letting us know - I have checked the Pricegrabber section and they're not on there, so I suspect it may have been a Google ad. We'd really need to know what page it was on though to look into it further. The google ads are also geographically sensitive, so the ads you see in Arizona will be different to those we see in the UK or NZ. That said, we can preview ads for different regions and block suspect companies if required.
Our pricegrabber boxes are always a good indicator of typical and genuine pricing. Checking it now on our 40D review shows sellers from $1049 to $1299 for the 40D body alone, so anything less than $1000 should immediately ring alarm bells.
http://cameralabs.pgpartner.com/search_ ... d=47301134
In fact I wouldn't even bother looking up a company in resellerratings quoting $449 for a 40D body as anyone selling that far below typical prices is suspect.
Let us know where you saw the ad though and we'll look into it.