Divvy seems like a neat utility, too, at least for my taste in window management tools. I've been using Cinch (drag windows to top or sides of screen to cinch to full or half screen size - http://www.irradiatedsoftware.com/cinch/), but I think I'll give Divvy a try.
SizeUp (also by irradiatedsoftware) is like cinch but with hotkeys instead of mouse management. It handles full, split, vsplit, quarters, multi-monitor, and multi-"space". I've been using it for a while now.
Divvy has an edge with the customizable zones; the 66/33 split from the video is a good example. SizeUp has the edge by being 100% usable mouse-free OOTB.
