I'm loving your brain right now.* The "plug it in directly" is
   just how I'm thinking; I don't see any reason why some darn
   "Central Processing Unit" unit has to get in the way of most of
   the graphics rendering. Tell the HD what do display and BLAM -
   show it - at little delay as possible.* I'm thinking a dedicated
   graphics HD - no other purpose but long term storage of
   temporary display data, of whatever form. That way, there's
   unlimited graphics memory, totally dedicated.* Maybe someone's
   already doing it - I dunno - but it just seems completely
   logical to me. Then the game logic and the human interface can
   get the slower stuff. :P