Project Vasari is an easy tool for creating a conceptual building design. It is a stand alone application same as a Revit.Vasari is able to produce conceptual models using both geometric and parametric modeling functionality. Your designs can be analysed using the built-in energy modeling and analysis features.
Once you complete a conceptual design then easily we can bring design data in to Revit for BIM.
The Labs page for Vasari offers the reason for the choice of the name:
Giorgio Vasari was an Italian painter, writer, historian and architect.In his honor, Project Vasari is the name of the latest technology preview on Autodesk Labs.
How to Download??
Go to below link to download the installer for Vasari.
After installation the technology preview will operate up to 15 May 2011.
How To Learn??
Vasari introduces an excellent series of quick start video tutorials. These are referred to as the Essential Skills Movies; there is a floating window with links to 6 simple movies which will kick start your Vasari experience.
Also you can follow Buildz blog for more tutorials.