The only problem with installing Amarok would also be getting all the baggage that comes with it, which will be a lot of the KDE dependencies it needs to run. Not something you'd want to do if you're a Gnome purist.
Personally I absolutely love Banshee. It has everything I need and more for playing music, and videos if you desire, but I use VLC for video/DVD watching.
But if you like the look of Amarok, then Exaile would be a solution, since it runs and acts very similar to Amarok, but written for GTK+
It's perfectly OK to express an opinion, but refrain from foul and stupid language