That being said..
[/fluffy unrealistic dream mode on]
It would be nice to have some kind of on board chipset that would enable screen dragging and other "Amigaish" functions but (and here's the trick) does not rule out the use of modern graphics cards. Or in other words a chipset that would keep all of the functions of the graphics card which one chooses to use but adds the functions of the on board chipset .
[fluffy unrealistic dream mode/]