TweakWindow

TweakWindow is a handy window enhancement utility with a wealth of options. You can set your own transparency options, hide, minimize, roll up, place a window on top of all others, make it a "ghost" or even change a window's icon/title. All this can be done via hot keys, through a window's system menu or by adding appropriate buttons to a window itself. No one will be able to see what windows you have opened. Try it FREE. See how cool it is!

Free Download from Windows Customization Programs

Actual Window Menu

Actual Window Menu is an innovative suite of the most popular and essential tools that enables users to operate windows on the desktop in some advanced ways: minimize them to tray, set up priority, apply transparency, roll up/unroll, resize, align, etc. Once installed, the application embeds its extra commands into each window's system menu. These new commands are easy to use and significantly enhance windows management abilities.

Free Download from Desktop Enhancement