Just received an e-mail about this from Amazon. They've reduced the price of some really recent MP3 albums to £3.99. Many other retailers are selling them for double that price. They include:
Build a Rocket Boys! - Elbow
Last Night on Earth - Noah and the Whale
Killer Love - Nicole Scherzinger
Lights - Ellie Goulding
Progress - Take That
A decent price for some pretty good albums, I thought.