Mac OSX people, who still search for good drawing tools (apart from that obvious, but expensive Adobe range), should make this an instant download: Autodesk’s SketchBook teamed up with the marker and color-manufacturer Copic. The result is an free app, on the Mac App Store, that combines the goodness of both worlds: an easy to use software with nice to look at colors.
The app features 6 different Copic marker nibs and brushes, up to 6 basic layers and a collection of 72 Copic colors. Simply a fast way, to get stuff drawn.