The Guardian and it's Sunday sister paper The Observer, are giving away an audio CD each day this weekend:
"This weekend the Guardian and Observer are giving away two free Doctor Who audio CD's: The Hounds of Artemis narrated by Matt Smith and The Rings of Steel narrated by Arthur Darvill.
Plus, see the Guardian every day next week to find out how you can claim a free Doctor Who download from the Hornets' Nest series, read by Tom baker."
Ear porn all round for the price of two newspapers. :D