AddFilesCM is a utility for concatenating the Contents of plain text files, in alphabetical order, and placing the result in a new text file.
The generated file is saved in a folder named "AddFiles" of your Home's Documents folder. The file name is of the form "AddFiles-{Date-Time}.txt" where "Date-Time" is the date and time the file was created as shown:
AddFiles-[2008-11-26 20.39.05 -0500].txt
AddFilesCM is very easy to use:
Control-click on a selection of plain text files in the Finder and select "Add Files" from the AddFiles submenu