I used to use Texter as a program to create text macros that can be used in any application, e.g. so you can type "sigg" followed by the space bar and it would replace the word with your signature that you can include at the bottom of letters, etc. I used this for code blocks, long names, etc. Very useful.
However, the latest version causes subtly odd behaviors on Windows 7 which makes it unusable so I uninstalled it.
If no one has a good answer, I'll go back to ac'tivAid, a collection of tools (in German) which does about 100 other things as well but is a bit overkill for just getting the macro functionality.
Does anyone know of another program that enables keyboard macros that can be triggered simply by typing text followed by a SPACE or TAB?