Is it possible to define template files for the context-menu?

I often have to generate files (for example letters), which should have a certain content at the beginning (e.g. letter head,...). In Many Linux-Distributions there is a folder called ~/Templates - Every file in this folder appears in the context-menu/"File new" and is copied to the folder after selecting this entry. Is something like this also possible in MacOSX 10.6.8?