Windows was fully up-to-date, but it took the Convenience Rollup quite some time to install anyway. I didn't even look for it in the Update History. I'm so sick of fighting with Windows 7 updates over the past year!
I build my images the old fashioned way. MDT is way too complicated for me, I'm OLD!! I create the image from MVLS media, use sysprep and dism and image machines one by one from flash drives. I've used 3rd party systems in the past, e.g. Ghost and Acronis, but once I got familiar with Microsoft's native tools I stuck with them. We don't have that many desktops to worry about.
If I can get a new user logon to a minute or less, I'm happy.