This post if pretty old so just thought I would bring it up to date.

For the last 4 years I have been with PROVITA and I am pretty happy with it. Their supplemental insurance is also pretty good and after comparing it to even the new insurance prices for 2007, it remains pretty competitive. Their truly only downfall for English speaking expats is that their website is only in German, but they do have English speaking agents. You can find more info on them at:

www.provita.ch