Since 2009, Microsoft has released multiple versions of SharePoint 2010 VHD (a.k.a 2010 Information Worker Demonstration and Evaluation Virtual Machine). Microsoft also upgrades its Evaluation Virtual Machines from time to time. You may find many websites sharing the SharePoint 2010 VHD Download links, which may be outdated by now.
Below is the latest VHD containing Service Pack 1 builds of all products. This was published on 13-Sep-2011:
http://www.microsoft.com/download/en/details.aspx?displaylang=en&id=27417
The above link contains three Virtual Machines with setup of Windows Server 2008 R2 with SP1, SQL Server 2008 R2, Office 2010 SP1, SharePoint 2010 SP1, Project Server 2010 SP1 and Lync Server 2010 SP1.
Update (16-Jan-2013):
Today, while navigating my own blog, I noticed that Microsoft has refreshed this VHD on 26-Mar-2012. In addition, I can now see companion content and documents related to SharePoint 2010 Value Pillars.
- Brain LOGs