Apparently The Witcher is on sale on GoG for only $5. Pretty awesome, it's only for a limited time though:
http://www.gog.com/en/gamecard/the_witcher

We have a http://www.gamesas.com/index.php?/topic/1178093-game-sales-and-deals-steam-gog-etc/ for this sort of thing, so you may wish to post this there, too .