I found an amazing company which sale loads of different types of
wheelbarrows. Its called <a
href="http://www.wheelbarrowsales.com ">Wheelbarrow Sales</a>.
They have Garden Wheelbarrows with both plastic coloured pans, or
galvanised pans, and with either a solid or pneumatic wheel.
I have seen them myself and they are of excellent quality.
If you need any more information, either post me a message, or visit
their site. Its quite informative too which is a bonus.