Will Vista provide the content you expect?
Two security gurus, Steve Gibson and Peter Gutmann believe there will be severe costs associated with Vista DRM. The increased cost will include a cost in processing overhead and a cost in Vista compatible hardware.
These two gentlemen believe that much of the capability of Vista capable computers will be curtailed or even crippled. The below link is an podcast mp3 of Security Now. In this interview Leo Laporte and Steve Gibson, interview Peter Gutmann.
http://aolradio.podcast.aol.com/sn/SN-074.mp3