http://thereptileroom.org
and faunaclassifieds.com
The guy who owns/runs the reptile room usually has some burms in for sale. His username is Gary, his brothers is BigDogg. I wouldn't hesitate to buy from them. Proherps.com is his website I think.
On Faunaclassifieds, they have the BOI (Board of Inquiry) where you can read/post asking about breeders and read feed back on them. I would do a search there before you buy from anyone. Hope this helps some.