Schools in Vaud area and accommodation

We will be coming to Switzerland at the beginning of 2010, as my husband will be working in Rolle. My children are aged 7,nearly 4 and 1 and I am looking for schools that have an English focus, as they don't speak any other language. Preferably not the really expensive schools. We are also from Australia and looking at seeing whether anyone is interested in maybe a house swap. We live on Sydney harbour, in a 6 bedroom, 41/2 bathroom, 3 storey, double garage house,with an inground pool, directly across from a huge park, walking distance from the local school and ferry system. Any help in schools and housing in that general area would be much appreciated.