While I’m not a big MS Windows fan, I do have to use it on a daily basis. There are a couple of things that make it a much nicer place to be. One of those things is Launchy. I adore the new krunner in KDE4, and Launcy is a bit more like that. No more crappy “Start > Run” dialog; if I want to type the name of an executable in my %PATH%, I’ll start a command prompt.
With Launchy I can type the name of the application and see options appear. It’s like a search for the “Start > Programs” menu.