Get a free audio book for your IPod or MP3 player when you sign up for a 30day free trial. Loads of cool titles to choose from. The trial is commitment free so can just cancel the membership before the 30 days is up.
The direct link to audible.co.uk doesn't always work so have changed it to the xfm website who are advertising the deal on their website. Just follow the link from xfm site.