I use an applescript called "Backup User Prefs"
to backup all my pref files, and mail, and bookmarks.<br><br>quoted from site:<br>We have written a Mac OS X AppleScript freeware application, called Back up user prefs, that backs up a user's ~/Library/Preferences folder for safety in the event of corruption of either individual preferences or the entire folder. It also backs up the preferences folders for Chimera (Navigator) (v 2.3.7 added support for Camino, the newly-renamed version of Chimera) and OmniWeb that lurk in the ~/Library/Application Support folder and Mozilla and Safari in the ~/Library folder. (Netscape, iCab, Opera, and Microsoft Internet Explorer preferences are automatically backed up when the ~/Library/Preferences folder is saved.) Back up user prefs allows the user to elect to save previously backed-up preferences in the event that something goes wrong. In addition to the capabilities of earlier versions, which include the ability not only to restore preferences that have previously been saved using the application and allow the user to choose the location of saved preference files, v 2.3.7 introduced a new feature that permits the user to choose to restore 1) the Preferences folder only, 2) the browser files only, or 3) both the Preferences folder and the browser files. The application includes the option of backing up the user's Mail folder and a very robust error-recovery capability that, in the event of a copying error caused by the presence of a file or files whose owner name is "system" or "root", which will result in an aborted backup, flags the culprit file(s) and lists it/them, offering suggestions as to how the user can reset the owner name to allow the application to work successfully,<br><br>