I'm in the middle of restaging my primary desktop machine at work with Windows 7. It's exciting, but I still have the mundane task of resinstalling all of my essential applications so that I can work again. These apps include things like Notepad++, Chrome, Firefox, Paint.NET and more.
Ninite.com offers an easy way to select (À la carte) many of the free applications that I use and create a single customized installer for myself. It's free, easy, and a big time saver.