That sucks, make sure to follow eBay and check your local craigslist, these guys are often idiots and post the gear for sale almost immediately.
It's too bad you don't have more serial numbers available.
I would go over your receipts from the purchases and try to get more aerial numbers, call the companies you bought from and see if they have them on file, contact private sellers and see if they have serial numbers of gear you lost.
Check local pawn shops.
Take notes of specific marks you have.
And get photographers insurance! (Something I need to get too, not sure where to even get it but I know I need it).
I've known people who got their stuff back, especially posting to these forums, this is the best place to post, I knew a guy who got his entire 8x10 large format kit stolen and another guy looking for one bought it, realized it was a forum members, and then got the police involved, and got the money back and caught the perp.
Good luck