9Mar/090
System Center Essentials 2007 SP1 VHD
Microsoft has released a VHD downloadable version of System Center Essentials 2007 that will allow you to evaluate the product in a sandbox environment. This is particularly useful if you cannot install the application in a live production environment and you want to be able to explore the features of the application
Thanks to Ment van der Plas for pointing this out to me 
SCE 2007 VHD Download