After the two posts about cases I thought I should probably let you know which one I got in the end...
I went for a Pibow from Pimoroni. It's now available in more colours but I went for the original rainbow colours.
One of the most important choices while I wait for my Pi to arrive is what case to put it in. The case will not only stop the Pi getting damaged and dusty it will also make it look good.
Searching on the internet and looking on the official Raspberry Pi site and their forums, there are all sorts of cases available. Made from everything from Lego and paper to metal, plastic and wood.