Amazon are treating their customers to £3 worth of Free MP3s this Christmas. Simply go to the amazon music download site (linked above) and then choose your songs and at the checkout enter code FREMP3S to get £3 off your order. This can only be done on Christmas Day or Boxing Day and only once per customer.
Amazon seem to have launched a new mp3 download site to rival iTunes and the like. Many tracks are available from as little as 59p which makes them pretty cheap. Many full albums are £3 which is also damn cheap. Amazon have a download widget which will download the tracks straight to WMP or iTunes. The best thing is that tracks are provided without any form of DRM. Which is good!
If you want to check them out, check this Linky