I've gotten quite a bit more information about one of the identity thieves. I'll research the other when I get the police report, but for now, I'm backing off because I've called the FBI and hoping they have the resources to pursue this.
Oh, and one of the guys who was arrested was also arrested earlier this month. His charges? Amongst other things, several misdemeanor counts of mail theft (there was also a felony theft charge). Unfortunately, all charges were dismissed. The status of them is listed as "Dismissed/No Complaint."
This is frustrating as hell. He was charged with mail theft. He had mail on him for several residents in this area and he was buying goods and services in my name yet he is only charged with misdemeanors. I realize that the prior dismissed charges can't be used, but that doesn't make me feel better.
Oh, and I called the California police. He has two outstanding warrants down there but since California's not requesting extradition, it's a moot point.