I have just promoted personal-menu, large-statusbar-clock, and countdown-home to diablo and chinook extras. These are the first versions released for diablo, even though the chinook versions worked fine for me.

combatdoc: If you have the extras-devel repository enabled, you have probably seen my updates from today. They are version bumps for the diablo repo (although there are some fixes like personal-menu should now back up properly, and pm and lsbc use autotools to build).

Oh, pm also has a new custom icon.
If lsbc is causing a problem crashing the desktop, try disabling alarms through the lsbc configuration (assuming you haven't already). This has been consistent in eliminating the problem.