Hi, welcome to Switzerland.
There are many English speakers living up and down this side of the lake (I live in Meilen). Depending on the age of your kids, there are also playgroups for English speakers.
And in Uster, there is a wonderful school/club called the WAC (Women's Activity Centre). My daughter went to preschool there for a while, but I also did German classes there, and, there are also lots of social activities organised for members. It also has a nice library of English books for kids and adults. (
www.wac.ch) Even though you won't be living in Uster it might still be worth joining. Also, despite the name it's not just for women.
You might also like to check out the yahoo groups for parents in Switzerland ('families-in-zurich' and 'expat-moms-in-switzerland'). Because they are family focused they are a fantastic resource for finding out what is happening where and when, finding out about playgroups, schools etc.
There are also some wonderful playgroups near Stadelhofen (very easy with the train from Männedorf) for parents and kids. I took my daughter to some of these regularly when I arrived, and we both made friends. There were also quite a few dads going, too, so your husband would be most welcome. You can find out details through the yahoo groups.
And finally, there is a regular fortnightly coffee morning for international women in Meilen who are happy to speak English. This might be an option when you first arrive and before you start work. There are quite a few women from Männedorf and Stäfa who come to this, so this could be a way to meet a few at once. PM me if you want more info on that (I don't organise it but I do go regularly).
Good luck settling in.
Kate