Report the serial numbers to the police in NY, and NJ at the minimum. Pawn shops, or camera shops that buy used gear must hold it and check with the police database before they can resell it, so only really dumb thieves would sell it that way.
There are numerous web sites for registering serial numbers of stolen gear. You can also look for images that were taken using your camera and posted on the web, there are web crawlers collecting exif information from posed photos.
Unfortunately, stolen gear can be shipped anywhere, and sold on places like Craigslist or ebay, and its never usually discovered.
Canon rumors is not a site to post stolen equipment, they do not have a listing or database, but there are lots of sites that can help.
Try searching for something like "Find Stolen Camera"
Getting a serial number for your lenses can be difficult, unless you have written them down.