It's Warhammer Weekend over on Steam which means games like Space Marine, Dawn of War, Dawn of War II, and the obligatory expansions are 66% off. I'm not sure if that's enough of a discount to grab those of you who have been holding out for so long, but I hope so.
As a part of this promotion, Dawn of War II: Retribution's multiplayer is playable for free. Though I could never get into it on the same level as Last Stand mode or the campaigns, you can't argue with the price. Strongly consider leaving your comfort zone with one of these titles if they're all new to you.