You may have already seen this but in case you missed it and are looking to give System Center Virtual Machine Manager a test drive then this is the place to start. You can access the main page at http://technet.microsoft.com/en-us/scvmm/default.aspx but some of the meat of the page is below:
Get up to speed fast with the trial software and VHD
The trial software and a trial virtual hard disk (VHD) are now available for free download.
Read the Virtual Machine Manager documentation
Get an overview of Virtual Machine Manager features and functionality. Here are a few sections you may want to read:
View the Virtual Machine Manager How-To Videos
The videos are brief walkthroughs of specific features in System Center Virtual Machine Manager (VMM). Product experts from the VMM team demonstrate basic tasks within the product.