Blender 2.72 Cycles Freestyle Rendering Test

Modeling: Metasequoia 4 + Blender 2.71

Blender 2.71.6 Cycles + OSL: http://www.graphicall.org/110

AddOn BoolTool 0.2: 
http://blenderartists.org/forum/showthread.php?336498-BoolTool-Preview-Faster-Booleans