Original sentence: Or, a free version that is integrated with Google Earth and limits export to Google's "3D Warehouse" where users can share their content.SketchUp Pro (Google) is a 3D modeling package that features a sketch-based modeling approach and has both a Pro version which supports 2-D and 3-D model export functions among other features, and is currently priced at $495 USD
Edited sentence: SketchUp Pro (Google) is a 3D modeling package that features a sketch-based modeling approach and is priced at $495 USD or a free version (Sketchup 6)Easy and quick to learn and use.The 3D Warehouse lets users with Google accounts share 3D Models easily