A 7300GT 128-bit or 7600GS will do with at least a 3GHz HT, preferably with SSE3 (and of course CyberLink decoder). But best to wait a few weeks for an X2400 as they promise to be far superior. The comparable 8000 series is not on offer in AGP and in any case fails to accelerate VC-1 which is important for some commerical discs.