Bind config tools?

Anyone have a lot of experience with bind? Are there any good configuration tools out there for it? The dns files are sort of complex and very picky, someone must have written a utility to assist in the creation/maintenance of them. I haven't been able to find much. Webmin seems to work pretty good but it's kind of slow, and I don't need all the other crap it does. Just bind dns files. Any suggestions?