DisplayFusion - DisplayFusion will make your multi-monitor life much easier.
Total Commander - A Shareware file manager for Windows® 95/98/ME/NT/2000/XP/Vista/7, and Windows® 3.1.
WindowGrid - Quickly and easily layout windows on a dynamic grid using just the mouse.
Path Finder - The Finder, reinvented. Path Finder is an award-winning file browser and management application for Mac OS X.
Mizage Divvy - Divvy is an entirely new way of managing your workspace.
Dolphin File Manager - Dolphin is a file manager for KDE focusing on usability.