I would just like to point out a few things.
DRM in the current implementation was force on MS by the hardware vendors and on the hardware vendors by those who stand to gain from DRM (in other words the music and film producers who will get more money if you lose your unarchived media and have to replace it).
As for the application of DRM to gamaing equipment, I do not see where this performance drop comes from, as games are not generated from DRM protected video (DRM in games comes from a check done at startup.).
Remeber also that if equipment does not have the DRM hardware, what would actually happen is that DRM protected content will not be usable.
Finally as for harming one of the major windows PC sellers, Dell was one of the major windows PC sellers, they are now a dying company, desperate to get money off MS to try to stay out afloat.
As for Vista only being a slight improvement over XP, well from some points of veiw that is true, but it is what will be available, and as windows on a computer provided by a reseller is locked to that motherboard, any replacement for that computer would have to have a new copy of windows. So any replacment for a Dell would have to have a new OS, and if Windows is chosen over Linux, then Windows Vista will be the operating system.