Sorry to hear; I know that shit sucks. I've been robbed 3 times in the last three years, and it's starting to get old.
Checking craigslist and ebay are certainly good bets, but also make sure you give a detailed police report including the product's serial numbers. When someone wants to sell an item at a pawn shop, the manager of the store is required to enter the serial number into the police's computer database. I got my mountain bike back using this technique 6 months ago, although I think it was also helpful that the guy was trying to sell 10 other bikes at the same pawn shop.
Best of luck.