Hi,
looking for an apartment I would recommend to search on
www.homegate.ch . This is the best and most complete site for Switzerland. That's also what you can do already in advance. You can also use the help of relocation agents, who are linked well to landlords, for example
www.sgierpartner.ch or
www.bridgingculturesrelocation.com. This costs, however.
Depending on how long you intend to stay, it may be most convenient for you to rent your furniture. The fruniture rental company
www.furniture-rental.ch offers very comfortable packages at resonable price. You also do not have to care about assembly and transport. Furnished apartments, however, appear to be very expensive, if you find them at all.
Hope this is of help
ST