This weekend, Icewind Dale: Enhanced Edition is on sale through the Beamdog store for 25% off ($14.99). You get both the Windows and Mac versions of the game with one purchase.
http://www.beamdog.com/products/icewind-dale-enhanced-edition
Sale ends April 27, 2015.
http://www.beamdog.com/products/icewind-dale-enhanced-edition
Sale ends April 27, 2015.