I hope you catch the scumbags and they don't get off with a slap on the wrist. Friggin' thieves royally piss me off.
I'll keep an eye on craigslist out here, though I doubt they're savvy enough to post so far away.
One suggestion is to keep an eye on this site:
www.bikefinds.com. This site tracks craigslist and ebay ads for various dirt bikes...could help in finding the bikes if they list in areas outside of NC.
Good luck and keep us posted if you will...I'd like to see them fitted with concrete shoes and sent swimming.