I came across a neat program today called Kaptain. Its premise is simple, but it may be a solution for those who don't like the command line, or have trouble remembering the available switches, but don't know of a good graphical alternative.
Kaptain displays a graphical interface with radio or check boxes for available switches and text boxes for everything else. A brief sampling of the supported programs is listed below.
A template script is needed in order for an app to be supported. There are many useful apps included by default, but you can also add your own. Documentation can be found here.