I had a list of videos through which show many of the the new features. The scripting feels a bit clunky in the couple I’ve wantched, but as a way of introducing a feature so that you’ve got some idea what to investigate in detail for yourself they’re hard to beat.

Windows 7 Feature Overview
  Demo 1: Introducing DirectAccess
  Demo 2: Using Search Federation
  Demo 3: Using Windows PowerShell 2.0
  Demo 4: Configuring AppLocker
  Demo 5: Troubleshooting Windows 7

Windows 7 Deployment Enhancements
  Demo 1: Modifying Windows 7 Operating Systems with DISM
  Demo 2: Automating Deployment Using Windows Deployment Services
  Demo 3: Provisioning Virtual Machines

Windows 7 Manageability Solutions
  Demo 1: Configuring Group Policy
  Demo 2: Using Windows PowerShell 2.0
  Demo 3: Using Support Tools
  Demo 4: Exploring System Recovery Options

Technical Overview of Windows Server 2008 R2 Part 1
  Demo 1: Using Hyper-V Live Migration
  Demo 2: Booting from Virtual Hard Disk (VHD)
  Demo 3: Administering Windows PowerShell Remotely
  Demo 4: Using Active Directory Management Enhancements

Technical Overview of Windows Server 2008 R2 Part 2
  Demo 1: Improving Availability and Scalability with Server Core
  Demo 2: Managing Web Applications with the Configuration Editor
  Demo 3: Installing and Using the Windows PowerShell Snap-In for IIS 7.5
  Demo 4: Configuring an FTP Server with the New Administration Interface
  Demo 5: Connecting to Windows 7 Clients Using DirectAccess

Using the Windows Server 2008 R2 Migration Tools
  Demo 1: Installing Windows Server Migration Tools
  Demo 2: Migrating Active Directory
  Demo 3: Migrating DNS Servers
  Demo 4: Migrating IP Settings 
  Demo 5: Migrating DHCP Servers
  Demo 6: Migrating Local Users and Groups 
  Demo 7: Migrating File Servers
  Demo 8: Migrating Print Servers