Rather than dishing out between £100-£200 on a vocal screen i decided to build one myself. Using some wood that came with my house some packing foam, various length screws and nails and my (as you can see) excellent joinery skills i bodged together this.
It may not be pretty and it may not be as adjustable as some of the off-the-shelf models but it is cheap and it works.
Estimated cost; £0.20 (for some tape and glue)