Computers should be black and white, like badgers.

Or possibly covered in flowers (http://www.vectronicsappleworld.com/pics/macintosh/imac/flow2.jpg).

Also, it would be ace cool if you could get computers which CHANGED COLOUR like all those cubes and lights and things that they sell on iwantoneofthose.com.

Or global hypercolour computers.

Or computers made of jam.