I was asked how I produced my little addon that sets the strings for the combat log, so I figured I'd post it here for everyone to see. It's a little addon called "LCLFixer" (That's "Lanerra's Combat Log Fixer" :P )
Anywho, here you go:
## Interface: 20400
## Author: Lanerra
## Title: |cffff6000L|rCLFix
## Notes: Restructuring of Combat Log text output.
You create a .toc file and a .lua file, copy the code into their respective files as I listed above, and plop them into a folder in your Addons folder. I have LCLFixer.toc and core.lua inside of a folder called "LCLFixer", inside my Addons folder, for example. :)
That should set the strings everytime you login/reload/etc.
The only problem is with every zone you would still need to change it to whatever filter you had before (ie. "Everything", "Self", "What Happened To Me?", etc.)