We just installed vertical blinds to divide the space in 2. In the original project (cwsc.ning.com/photo/photo/show?id=2019905%3APhoto%3A46) we thought about using regular office fixed thin walls to separate the front room from the working area, but then after some brainstorming we decided that it would be cooler to have just a curtain-style track blind that can be opened at any time :)