Update: Sorry, false alarm. The price was slashed, but only if you are accessing Steam with a Russian IP, like I do.
Without any proper announcement and not as a part of a special deal (as far as I can see) Witcher 1 & 2 prices were slashed in half on Steam as of now.
Great game, especially the second one.
Playing it right now on a "bootcamp" Windows 7 running on a Macbook Pro (early 2011) which is connected through a DisplayPort to HDMI cable to a 50 inch TV and surround sound system. Playing it with a 360 controller of course. Who needs consoles? :)