Dual boot windows 7

http://www.hanselman.com/blog/LessVirtualMoreMachineWindows7AndTheMagicOfBootToVHD.aspx

Create a windows server 2008 vhd from the ISO

http://geekswithblogs.net/hinshelm/archive/2009/12/07/create-a-vhd-from-the-windows-server-2008-r2-image.aspx