Yes folks, Microsoft have updated their tools for working with windows images.
What was once known as the Windows Automated Installation Kit has now been merged with more utils and is now called the Assesment and Deployment Kit.
A quick look on Microsofts site only seems to proveide a bootloader to install from the internet however if you run this file you are presented with the option to download the files for offline installation.
Be warned though its a biggie coming in at around 3 and a bit Gig.
It can be downloaded from here