I used to use sizzlingkeys, which had a nice option to make a shortcut that would "lock" the computer. None of my applications would close, but it would send me to the login window where I'd have to type in my password to get back to the computer. I recently switched to coversutra which, along with quicksilver, is a lot more functional. I still miss that shortcut to lock the computer, though. Does anyone know where I can get an applescript to achieve this? Then I could just set a quicksilver trigger to run the applescript. Any help would be greatly appreciated, thanks!