At my current job we have MRI readers, almost all of them who come from medical backgrounds (neurologists, radiologists, the odd obstetrician here and there) and we have them use the command line all the while. We're transitioning them into using hg for some things, and they seem comfortable with it.
A) use a VCS (explicitly not as like a transparent feature in some software package)
B) use one from a command line
because I'm pretty sure managing documents with hg from the command line qualifies you as "techie" at the very least "tech-ish"