Linux Mint 11 Rulez....
I'm using the hillbilly rat rod method. I have a aluminum energy drink bottle with a bulkhead fitting
If you want it to be a true hillbilly/redneck overflow, it needs to be a beer can or bottle!!
Application?, it's applied to the cover.
I'm running the chrome tube looking thing...mounted on the core support just to the drivers side of the radiator. Pretty similar to Mark's set up.