Ability to arrange content components

ability to arrange content components. ex: arrange same-width content components on right (w,x) & left (y,z) side of main content. side components (w,x,y,z) are stacked. inside (bigger) content components (A,B,C) also stacked, but allows more than one component per row, as well stacking components on same row, i.e., two stacked components (A/B) to the left, would be same height as the one© on the right of the row. Like this (where C would stretch to the row B is on):

w A C y x B z

for better formatting, pls see: http://pastie.org/315140