Often, I want to download or unrar into a folder with the same name, but on a different drive. Using the current dialog window makes this simple operation rather cumbersome. If the dialog window also contained a text input field, where the current path is displayed, changing folder names and/or drives would be very easy.
For example, it might look similar to the well-known dialog of install routines:
The possibility to type in drive letter and whole paths, e.g., 'e:\tmp\New unrar location' would speed up the process in general. This way, you don't have to choose 'Make New Folder', write a name, and then select the newly created directory using your mouse.