It used to be that in OS8.x, I could add sound effects to my triggers by adding the sound files to the system folder or via the sound control panel. And now that they changed the way system sounds work, how can I add more than just the basic set of sounds from system preferences? I've tried adding the sound file into the library of both the computer and my personal user accountm but it doesn't show up in the pull down menu. Any ideas?

I think you may need admin access, but the system sounds in Mac OS X are in:
System/Library/Sounds. Put your new sounds in there, restart Savitar, and then you can choose them in the Audio Cue pane.