if you like please visit my homepage.
http://www.weimer-cad.de
Here you can download all letters, upper and lower case, as symbols.
Sorry, short tutorial is only in german at the moment.
Create a little sketch in the model where you want the text to be placed.
Copy sketch -> new empty drawing -> paste.
Insert all the letters you need, maybe using snap to grid.
You can scale or rotate the symbols.
When Text is ready, explode all the symbols, copy and paste into the sketch defining the area in model.
You now van extrude or cut.
Have fun with it.
Regards
Volker