Just hoping that this will start a list of short-term rentals available in Zurich that people can refer to. It's a frequent question that almost everyone asks when moving to Zurich.
Also, if someone's tried something on the list, feedback is also good.
So here's my small start:
I think it's worth taking a look at student online ads: http://www.students.ch/page_index.php
(German but occasional sites in EN)
There's also company that runs short-term furnished apartments: http://www.apartments-swiss-star.ch/
Saw this tucked away off Seefeldstrasse on my way to lunch: http://www.aparthotel.ch/