MDT Capture only Task Sequence
Just ran across this handy little task sequence template for MDT which allows you to very easily and automaticly run just a capture task on a freshly minted image without having to juggle command lines or resort to other methods.
deployvista.com > Home - Capture only Task Sequence for MDT 2008 (Lite Touch)
This is sample Task Sequence that will do automated capture only. It will apply WinPE to disk, run sysprep, reboot into WinPE and capture the installation, fully automated.