Microsoft Technet Evaluation software
Did you know that you can test drive some of Microsoft's marquee software - for FREE!
A short list of stuff that is available to trial:
Hyper-V Server 2008 R2 SP1
Windows 7 Enterprise
Windows HPC (High Performance Computing) Server 2008 R2
Windows Server 2008 R2 SP1
Windows Small Busines Server 2011 Standard and Essentials
Office 2010 Suite
System Center products
Drive on by and see for yourself!