To use a UK PC keyboard with a mac. Install UK layout (http://liyang.hu/osx-british.xhtml) and select PC British (105 alt) in keyboard settings. Then install KeyRemap4MacBook (https://pqrs.org/macosx/keyremap4macbook/index.html.en). Add the following to the private xml and select Fix Euro, PC Style End/Home #2 and PC Style PageUp/PageDown.

private.xml

<?xml version="1.0"?>
<root>
  <item>
    <name>Fix Euro</name>
    <identifier>private.fix_euro</identifier>
    <autogen>__KeyToKey__ KeyCode::KEY_4, VK_OPTION, KeyCode::KEY_2, ModifierFlag::OPTION_L | ModifierFlag::SHIFT_L</autogen>
  </item>
</root>