Geneva canton tax rate it quite high I think. It's 6% more than mine anyhow.
There is the option of living in France. I have a mate working in Geneva that lives just across the border. There is some kind of agreement Sans Frontieres thing, I think mainly due to the lack of housing in the area.
Anyhow I know she is earning just under 100000chf and they have a nice house in the Jura mountains. Her dh stays home, but they don't have kids. They shop in France too, which keeps the cost down.
I don't think she is entitled to French healthcare, she still has to pay private Swiss medical. But you can actually use private French doctors if the bills are cheaper. A lot of people here use German practices as it's cheaper and the insurance companies seem to encourage it.
It is a simple thought to say that you'll get some part time work when the kids are settled but one thing to take into account are the school hours! So if you are banking on having that extra salary to survive in the future make sure you are fully aware of school hours.
Local public schools are great, classes are legally 18 kids maximum, there is a local primarschule 1km from nearly everyone etc but, school hours tend to be : Monday, Weds, Fri 8am to 12pm and then on Tues and Thurs after a two hour lunch break the kids go back from 2pm-4pm. These are not easy hours to work around, and places for lunch clubs after school etc are limited.
More and more I am finding a lot of stealth taxes and unforeseen expenses creeping up, my salary compared to the UK is pretty good, and the tax rates make a big difference to take home pay. But we are lucky that we shop in Germany and France to keep the costs down.
You might find some help on the EnglishforumSwitzerland site. But please search carefully for a similar thread, the guys on there get very crabby about new "Can I live on this....?" postings.