Are you curious about Business Intelligence and want to have a little bit of a dabble on some VMs to understand the possibilities better?
V-Lab Central are now hosting some fully loaded BI Demo VMs with a walkthrough script which you can quickly spin up to see 'the art of the possible. I have used these VMs during several demos and they are a good way to see some first hand action on SharePoint Interaction with PowerPivot, PowerView, Reporting Services and a whole load of other Microsoft BI stuff.
You can access the site at http://bi.vlabcentral.com/.
Note: This is a non-Microsoft site, I assume this an MS partner doing the hosting. There is also a small $ cost associated with spinning up the VMs depending on how long you want them for (at the time of blogging there is a nominal $8 charge for a 2 hour slot)