[curt.clifton]

Are you on separate, networked computers?

If so, one option might be to set up something like ChronoSync to copy your database to his computer on a regular basis. Since the copy would be only in one direction, any changes he might make would be overwritten and wouldn't show up in your version. (This assumes that you set up ChronoSync to copy unidirectionally.) You might also need to set up a small AppleScript so Chronosync shuts down your husband's OF before copying the data.

My wife and I have a similar set up for copying our iPhoto database from her iMac, where we do any editing, to my MacBook Pro. It works nicely.