As I've mentioned before, Mutants & Masterminds has been hard at work on a DC RPG. The PDF of the main DC corebook is available on their website, and the print version is on it's way.
I mention this because M&M has put out another FREE preview. This one is a two-player, superhero on supervillain brawl, with two DC characters all statted up for use. It's available right here. Check it out!