I'm building a new website still under construction that will help you folks.
No other site like this.
It will give you a place to keep your serial numbers, photographs of your stuff.
You need to do things ahead of time, so when you get hosed, you will a better chance to deal with it.
You will be able to find the owners of things with just the serial number.
You can mark it missing and the site will display your stuff on a page to be seen by members in your county.
It has some general information about ripped off.
There will be more.