content: transmission is a good simple, yet powerful torrent client. Has a GUI, as well as usable from terminal.  youtube-dl is a terminal program but allows you to download youtube videos, as well as vidoes from common sites, many of them being porn sites.  its simple used like     youtube-dl "url"  in a terminal, where you paste a URL to the video between quotes.  This will download the video to where ever your current folder is in terminal, which by default is your home folder.