Gamers Gate is having a 75% off sale on Crusader Kings II and most of the DLCs. I just thought that I would pass this on to everyone.
Crusader Kings II is (again) at 75% off on Steam. You can also get all of the DLCs (bar THE OLD GODS, the new one) in a collection for an extra £10, or all together for just under £20.
Obviously a great deal :)