I know you specifically mentioned that you don't like console stuff, but Assassin's Creed Brotherhood and Revelations are very well done for console ports and they're damn fun provided you have a controller (Xbox 360 controllers aren't terribly expensive and they work perfectly out of the box).
Alan Wake is also a console port but it's got some killer graphics and an engaging story; good if you like more spooky, tense, story-driven games.
Batman Arkham City is excellent; you shouldn't let the console crossover steer you away. It seems like it would be hard without a controller, but others have said it works with keyboard, so there you go.
Serious Sam 3 is some good fun in the tradition of Doom and the like. Just ridiculous, over-the-top, monsters everywhere shooting gallery. It's not quite the breath of fresh air the first one was, but it's still good, especially if you can find it for $10-15.