Hi SamC,
Seeing as you work at the University, I'd recommend checking out the notice boards scattered across campus at both UNIL and EPFL. (Warning: it requires a bit of leg work and a sense of adventure. The EPFL campus is so confusing to navigate, I'm convinced it was designed neither by nor for human beings.

)
Quite often, people try to sub-let their place for a year if they are going abroad as a visiting scholar or exchange student. My husband and I found a one-year sub-let of a fully furnished flat this way. Another advantage of renting a place from a student is that you have a high likelihood of living within a reasonable distance from campus.
If you can't find a furnished place, you should know that outfitting an apartment with the basics won't cost you too much. The Salvation Army in Lausanne has everything you need for very little money (so long as you're not averse to slightly outdated furnishings), and if it's not beneath you, the large garbage pick-up nights are the best deal in town.

(In fact, just last night on the way home from our pub outing, I found myself helping my husband carry some rather large wooden objects home at 1 am.

.)
Good luck with your search!
HeatherM