I tried Blender in the past, but I guess I'm too old to wrap my head around it. ;-)

So I'm stuck with Wings3d for my modelling needs.

Anyway, making a script in Wings is easy. Just right click, then select the "Text" entry. Browse to the location of the exact font you want to use and type the word you want to create. The default settings work with most fonts.

Wings will create the object file for you. Then export it as an .obj and import into Poser.