Fences

Fences allows you to create panels on your desktop that you can make scroll-able, hidden, etc.

allows you to rearrange your desktop easily

http://www.stardock.com/products/fences/

Notepad ++

notepad on Developer steroids - gives formatting color codes and multiple tab interface

http://notepad-plus-plus.org/

Unlocker

very simple - unlocker figures out why a file is inaccessible and then tries to unlock it if you wish

http://www.emptyloop.com/unlocker/

WinSplit Revolution

similar to windowpad but more options - like different sizes on multiple commands, ie., ctrl+alt+numpad4 makes the window take up half the screen (left), ctrl+alt+numpad4  again shrinks it down to a third of the screen then ctrl+alt+numpad4 one more time and it takes up two thirds of the screen

all this is customizable

rainmeter

desktop styling app - very nice eye candy

http://rainmeter.net/cms/

x mouse button control

much like katmouse but with more control

http://www.highrez.co.uk/downloads/XMouseButtonControl.htm

Tiny Spell

simple background app that spell checks for you. it even tries to stay out of the way when you are using a program with a built in spell checker

http://tinyspell.numerit.com/