SMTube is a YouTube browser which allows to search and play YouTube videos in your favorite media player.
Good, if you use SMPlayer :)
This is what you are looking for. Definitely. I just found this software. Actually, I didn't even know I had it. I was just copy-pasting commands to setup something I don't even remember on my CentOS box, and it installed some codecs along with smtube and smplayer. So I decided to open it... yes. YES. No more sloppy flash and html5 youtube videos. Playlists. I don't even know how to start. I was just trying to find a way to say thank you to you guys!