Microsoft has released a Virtual PC image that contains Visual Studio 2010 RC to ease your tests without sacrificing the stability of your computer.
The requirement (which is not a small one) is to run Windows 7.
You can download the 8g file from http://www.microsoft.com/downloads/details.aspx?FamilyID=509c3ba1-4efc-42b5-b6d8-0232b2cbb26e&displaylang=en