Here's another thread to keep an eye on. It looks like there were some de-interlacing issues with earlier drivers, but may be solved now, although bit of a worry regarding the drop rate indicated in one of the posts. Main gripe still seems to be no true 24p support, and MPC-HC codecs not the best for PQ and needing to resort to PDVD and Arcsoft for DXVA on H.264 and VC1. No mention of ffdshow DXVA.