Just a note to any Bibliobloggers currently hesitating before starting to use a real and really simple bibliographical tool instead of EndNote, and thus reclaim the power they thought their PC had from that engulfing monster from the deep.
Zotero has begun to work on supporting the SBL Manual of Style as one of the many stylesheets it can output. At present it is "dev", but on a short test seems to be working pretty well...