There has been a lot of news coming out of GOG.com (Good Old Games) lately, and perhaps most significantly they are moving into newer games and indie titles as well as the good old DRM free titles already on offer.
Amongst the notable new entries on GOG.com you can pre-order Botanicula (from the makers of Machinarium), but perhaps most importantly GOG.com are running a promotion where you can download Fallout: A Post Apocalyptic Role Playing Game free for 48 hours until 23.59 GMT on 8 April.