Rendering Application

VRay
http://www.vray.com/vray_for_sketchup/

SketchUp is one of the most widely used and easy to learn 3D Modeling software on the market today. With V-Ray for SketchUp, users now have one of the most powerful rendering tools available to visualize their models with the upmost quality and realism. V-Ray works within the SketchUp environment allowing users to be able to efficiently incorporate the task of rendering within their current workflows.

Price around $700US