I have one of the Acer power supplies with interchangeable plugs. Except Acer only supplied it with the UK 3 pin plug. Where can I purchase the US and European 2 pin plugs, so that I can swap them for travel? Much more elegant & compact than carrying adaptors. This is the type of power supply, although the photo shows the US plug. [URL]http://www.e-techalltv.com/direct/index.php?main_page=product_info&cPath=7_2817_2573&products_id=36389[/URL]