Currently I am working towards the VMware VCIX6-DCV certification. To prepare for this I am going through the vBrownBag videos on the VCP6-DCV certification. It is a good deep dive that covers a lot of things you may have missed or forgotten over time. It has helped me improve things in day job that I was not doing properly. If you are working towards an VMWare certification or just trying to learn more. I really recommended going through the videos that they have put together. They have also covered teh VCP6-NV and VCP6-CMA. Hopefully soon they will cover the VCP6-DTM.