Stolen bikes are just one of the downsides of a vibrant cycling culture and much like the drivers that strike cyclists, prosecution of bike thieves is pretty much non-existent. Which is one of the reasons bicycles are such an appealing target for thieves.
Find out the what happens to those bikes that are stolen and the economics of bike theft at Priceconomics.
Helpful tips before and if your bike is stolen:
Record the Serial Number! There is not a more important step. This is the best thing you can do for yourself to guarantee proof of rightful ownership.
Take Pictures of you bike: Make sure to get new pictures with each upgraded component.
File a police report: Hopefully you'll have followed instructions of step one above and recorded the serial number for law enforcement records.
Locally, If your bike does get stolen, there is a resource you can post, Find Stolen Bikes Jacksonville is Facebook page that will put eyes on the ground for your lost bike. They have a pretty impressive recovery record.