Here's my new Window Management app for OS X (think SizeUp, MercuryMover, Shift-It, etc). Mine uses a "recursive" style of interface that always starts a window Full Screen and then cuts in it half (or thirds) with each keypress. Works with dual monitor rigs and is fun to use.
Please kick the tires:
http://allsystemsgrow.com/slicer/Slicer.zip
Demo video:
http://www.youtube.com/watch?feature=player_embedded&v=_u7nvEWjZuk#!
Let me know what you think!